{
  "manageEntity": {
    "action": "Update",
    "entityId": "357363495",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd70125c5c01325cdbbfe206c264c7a837273b4f312da8d326c546d4af6b3d17a",
    "signature": "0xb045f7987245b55ed206ed4e8ffab0d0fe6c7f2f85a01e964ab49ff045fb484b495a4526255ba2f5e75c8aef110972c700939769c729ad98959141f8abfdcf541c",
    "signer": "0x1F2408cda7A0452De8d32fBe995D099a5F6A1D09",
    "userId": "357363495"
  }
}