{
  "manageEntity": {
    "action": "Update",
    "entityId": "707751709",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x856bd93a99e15073607801b57017c699239e0f38b0cc06d1e60351c83f9de67a",
    "signature": "0xbe797c9d61b1d25f58d897d542fbc280a65aabe9b611c74d54cce06326e9673d6c789141a4d6e3db29fd11f789ba31788581433d9841e2ee2feddd0d2dbbc7441c",
    "signer": "0xEf1011e287eCBCFD20235cc57bd6963382F19b5E",
    "userId": "707751709"
  }
}