{
  "manageEntity": {
    "action": "Update",
    "entityId": "861404489",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x84288a5a4ac745b1d2825014546d3fc41212caca445170426261c3bd081c8dc7",
    "signature": "0x9fc840d0b7215502b728982d056bfdbf548f786ffa82da0b8b8ec2ea5ef2e8cc3c7a44eddab850db0eb06a422ddac6ef89a7e0d32c7853c3ad4c5c76c83b469b1b",
    "signer": "0x55Ae68F0525d8Eb75B5C562f58eA1FEF4B53E46a",
    "userId": "861404489"
  }
}