{
  "manageEntity": {
    "action": "Update",
    "entityId": "508307433",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x00add7a6a17301254b2ac0e548227d7484033abdba9fd62e81946db0752c040a",
    "signature": "0x65e838cdde57828e0204be1ed09450d41906f70f0f31f840b0751dac5efb33a51816a73dac27e70f80d70bda69ffe1b18695d0abb913af3b9d831698f2fdf0ba1c",
    "signer": "0x02aB27E032095c55Cc0aB50950Fc3460d0Ee5B1E",
    "userId": "508307433"
  }
}