{
  "manageEntity": {
    "action": "Update",
    "entityId": "468813873",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8dd7e2d335007ba87131d01ffd1b52e97b35bc84616d00d2a970fc905a0f634e",
    "signature": "0x414a6fe3a5f5750414eba45ad13656f694bdf6e5e267c94591469d2be271b3c842a857e5fb1366b884ccaf62fc39294ddd5676c5ee62d69ec0e71fbdcfbf0d231b",
    "signer": "0xc5Fa09f5371cEfEBf004B331D3017dAe145f31c4",
    "userId": "468813873"
  }
}