{
  "manageEntity": {
    "action": "Update",
    "entityId": "385029655",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x18298af4f75ced47566e3da2bf154bf0d789a3e7a15a45b81ee6e34800a9c872",
    "signature": "0x8c70e17923290e575d83781a867130eca6c6b5200e7f5f4817d87aad4d8f70240ae5431ea802efd02a45aaa0e00de31785c62b0897784761b4a2f7d4bfe46aa31b",
    "signer": "0xbAD012b734cfB65A9FE3d71685746901db0Ea707",
    "userId": "385029655"
  }
}