{
  "manageEntity": {
    "action": "Save",
    "entityId": "566059595",
    "entityType": "Track",
    "nonce": "0xd8729bb1e509e251784e2a416f5ee4ce87dae170fec3194a1f500a7d6e96fc1f",
    "signature": "0x4ea9f0d2020c07fcde43c31dc8b9e552d0e6b0cfb8d7b47aae1d735afd51d4071cd691d6b1251ee0025b05224c9072d10cf92f16f60f267d7a0496ed3ca442711b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}