{
  "manageEntity": {
    "action": "Save",
    "entityId": "1792749884",
    "entityType": "Track",
    "nonce": "0x2675faaf8df2d73f0106885c8fffc647be55975a2b9a59772eda5d5069ad7bf6",
    "signature": "0x6af0c800acc3bd9585f6d178c3329edb10bf611077b125ca2c34d1f768af4f6e282ad9cb4bf2b03960420c9c8b0192054efcac9a79f5b80668e4eb69a5ec9d451b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}