{
  "manageEntity": {
    "action": "Update",
    "entityId": "758264219",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x32d175407ac59dfb3c3e6cf21b4d31412f7cf6cd093a5e9add771180571a7892",
    "signature": "0x74ac9a2bc918bb753cf95f1b4e2a5cf3d92b6197a85684be1c3276feb4053c407c0b7f8fb47451f7a3cc2f45a533113e7893c8bf029987cc12da5846538b40de1b",
    "signer": "0x5D33dA4294962c23DcAcF8A292aCc76C3D0Fe119",
    "userId": "758264219"
  }
}