{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4fdb4eaf2baa335025243fc8ba5e0887f9b37ff784eed1252367fb48ce5c446e",
    "signature": "0x27b1b8032acd5e250c863cdd3f6ab5286e4e02ea94fc8f242557a56e9c11305b4bf7fc1e822b55e271ae13842d3ac0dd65551c96ff6a9c5909b1bf2326b350501c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}