{
  "manageEntity": {
    "action": "Update",
    "entityId": "72610064",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a8e747ac5dd3c890e34c22913ed4753ea7fb25c40281a3d5807dea9e91c4561",
    "signature": "0x957de765e9bfcf086ccae66cdc6891e4f8e84641d8aa3378461de58b80a615542e7d75730f652a5bb3b4faa6f3c8370ee7f97c1a7d705612d8981856819612051c",
    "signer": "0x5020b06960773deF337dde65029F72631140b24d",
    "userId": "72610064"
  }
}