{
  "manageEntity": {
    "action": "Update",
    "entityId": "673296061",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3b6931a5efae496a054941a443ca1b4a5f63d34f7ee68f44db4569d7100918b8",
    "signature": "0x87cdb599aa815bfa889d172c8a8f35d869fb6c47770775049ee4f9497a63140c51c0256bda49546ca500f86f4e44428850110bf11cc7513dab571946d64f70491b",
    "signer": "0x91a5e115A87c5D214ad11fadb385e7a8006DdaAD",
    "userId": "673296061"
  }
}