{
  "manageEntity": {
    "action": "Update",
    "entityId": "802219588",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierab44acvos7tujpg7c3rnotoh3dfymvvtnb3t45bfkygby6dj4qb2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":991919169}]}}}",
    "nonce": "0x983b533b447890ea33d3eb51df75e618dc640b61cd8343687b1a178e0e6fd645",
    "signature": "0x51a96931442402026ddff82fe4fd1ab2c05696905a2a5f420d598377d044aebd6f600021a18fae20bcc4ccda7187e66434a8772e441f0fa634bb6d229dc4ec2b1b",
    "signer": "0xeDEAABE243C58c71da9030509870b6C7eDC9C772",
    "userId": "802219588"
  }
}