{
  "manageEntity": {
    "action": "Save",
    "entityId": "34626007",
    "entityType": "Track",
    "nonce": "0x2b398ace5da929be5698fce6e88c697347347f464817ecde5c43fa567cfcd074",
    "signature": "0xc288ebbad0772a3bf2443a31128bf867bb8864b4f6f2b37e727baf911e1304e70450bd57656508a418b6836a746162879b074dd248e82a0bdb768196463029721b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}