{
  "manageEntity": {
    "action": "Update",
    "entityId": "99354248",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d0f0bac2ee6e497c8a11a1486d6bb25177f2fd64e00cba52849846d8b061fc4",
    "signature": "0xb692a619d7410d13dddd83a30729ecae0214d1ea85183354aae2af9418f456c82197857e2d9258fc7b63957c517aad15f350bfd1736668b372349b5c5cd093611c",
    "signer": "0x101cd12F807db492Ae8eDa9A826AF9946E35D708",
    "userId": "99354248"
  }
}