"j'sais pas" meaning in French

{
  "forms": [
    {
      "form": "j’ sais pas",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "j'sais pas"
      },
      "expansion": "j’sais pas",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "je ne sais pas"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Give her a break, she wouldn't be like that if her husband didn't cheat on her, or maybe he cheats on her cause she's like that, hm, I don't know.",
          "ref": "2017, “Défaite de famille”, performed by Orelsan:",
          "text": "Pardonnez-la, elle serait pas comme ça si son mari la trompait pas, ou peut-être qu’il la trompe parce qu’elle est comme ça, huuuum, j’sais pas.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of je ne sais pas"
      ],
      "id": "en-j'sais_pas-fr-phrase-Ks9nFZ-b",
      "links": [
        [
          "je ne sais pas",
          "je ne sais pas#French"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Alternative form of je ne sais pas"
      ],
      "synonyms": [
        {
          "word": "chais pas"
        }
      ],
      "tags": [
        "alt-of",
        "alternative",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃɛ pa/"
    },
    {
      "ipa": "/ʃɛ pɑ/"
    },
    {
      "ipa": "/ʃ‿sɛ pa/"
    },
    {
      "ipa": "/ʃ‿sɛ pɑ/"
    }
  ],
  "word": "j'sais pas"
}

{
  "forms": [
    {
      "form": "j’ sais pas",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "j'sais pas"
      },
      "expansion": "j’sais pas",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "je ne sais pas"
        }
      ],
      "categories": [
        "French colloquialisms",
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French phrases",
        "French terms with IPA pronunciation",
        "French terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Give her a break, she wouldn't be like that if her husband didn't cheat on her, or maybe he cheats on her cause she's like that, hm, I don't know.",
          "ref": "2017, “Défaite de famille”, performed by Orelsan:",
          "text": "Pardonnez-la, elle serait pas comme ça si son mari la trompait pas, ou peut-être qu’il la trompe parce qu’elle est comme ça, huuuum, j’sais pas.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of je ne sais pas"
      ],
      "links": [
        [
          "je ne sais pas",
          "je ne sais pas#French"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Alternative form of je ne sais pas"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃɛ pa/"
    },
    {
      "ipa": "/ʃɛ pɑ/"
    },
    {
      "ipa": "/ʃ‿sɛ pa/"
    },
    {
      "ipa": "/ʃ‿sɛ pɑ/"
    }
  ],
  "synonyms": [
    {
      "word": "chais pas"
    }
  ],
  "word": "j'sais pas"
}