{
  "manageEntity": {
    "action": "Save",
    "entityId": "2078433627",
    "entityType": "Track",
    "nonce": "0x57e464cbcbf2cd4d9de3c2131a8b9b94a6b6fce265627227b2ca8bcfaded8079",
    "signature": "0x9888a3d203de90c1b768716c575b746eba460a4b60b0b963d281d0e99420d96f51d7bd746d7e214ee9e739cb100801b3ed8594c840f60332469c81c8340a67ec1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}