{
  "manageEntity": {
    "action": "Save",
    "entityId": "1467217267",
    "entityType": "Track",
    "nonce": "0xdcacc2ec28cc7c2fbb88fc99775064ad388f1634b0b5f81198675da479bbf371",
    "signature": "0x45944adcb3553b7448aa7036e61b1c741e13f73b677a45193d78166a0e0c264a7c2ba6b7eb7d893944f0a7a2106c0107738da1209c06d7b45f4f58cf5a1a52691b",
    "signer": "0x7e9720d8C73bd719B01E9408E15C2884254beC2a",
    "userId": "234846549"
  }
}