{
  "manageEntity": {
    "action": "Save",
    "entityId": "1315524930",
    "entityType": "Track",
    "nonce": "0x907dc79118e52d93c5e492a63168b84b3023b4422438aa892f8153c90c05d658",
    "signature": "0xac6da662eb37bdebe8ae5cda073e7293aa90fbe1bf79dc4595d28eb39f00d32225edc90d19f243d164198dbb595ac017cbef70563a5025c0d789ca9b87bc25e51b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}