{
  "manageEntity": {
    "action": "Save",
    "entityId": "36156481",
    "entityType": "Track",
    "nonce": "0x5a361dc80a518104aa67e9e77ea9656f7a8b255538a493209c287414f654d6f2",
    "signature": "0x7786127af3542a57de494a49f9032df10d38070a3690d4120c5e0f1a0f4e4ef74bf5bf9ac887e017782bd1c4a4e5b42d9b1590d96465bb33ca2be2113fb35c6b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}