{
  "manageEntity": {
    "action": "Save",
    "entityId": "1094735156",
    "entityType": "Track",
    "nonce": "0x7fa45a4d451f218179d2144c0d0021fad2c3aaca84e1b24d3dfaab71357c081b",
    "signature": "0x93cfb9bb4679f3fd5bb4065e1de436491c2a85def63f68bbf2734908211a4ce353e9b558fcd0d3727f6c59e0f1c1fed470f30293cbba74effe6cd6e0a81ac18e1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}