{
  "manageEntity": {
    "action": "Update",
    "entityId": "333304008",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb0c96cf357865e2876ad0e4b85eebbb7be76070f180801ad707609abe7eaf134",
    "signature": "0x58eb44cc775b07518b1c3b8dcf7d0e552ce34a652c5511a7c5741284aad1613d5ddd78bbff19998e4b94bd47a88f505585cb85b64cad62c528f72ef14d6180861b",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}