{
  "manageEntity": {
    "action": "Update",
    "entityId": "844726408",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x30ccb35c100806109ad50f72f0fc98669e386be8b4503fca2a0c4e3e10f201f8",
    "signature": "0x28e6a16cf0b4303cfe4946b6d2502529e6753cf6bd10c6df97ff00f904c830f358250f6572b3271383309a07516d49d8b47be4eb5438dabfaead3128ac29fad31b",
    "signer": "0xE084438778162ce5dd4e90f643b9F375cf6D0D53",
    "userId": "844726408"
  }
}