{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb86e2c940ec06ea01f1d7afa1e9eea54ce7b74a8e3b109fca42152583374567a",
    "signature": "0x8e0b072e0031e57a091f7aae65fa0788411799fb59b4f1e8f207bcdf4d87ebbe395ba8efe5643230ef4e6eb9e3379dcd92b95c1cd6cf34bb860794351dc2f8581b",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}