{
  "manageEntity": {
    "action": "Save",
    "entityId": "2082361990",
    "entityType": "Track",
    "nonce": "0xaa9cd8159b23bdfafe7f705fd76d527e77fbc359235aa35eb9dd02a06486f392",
    "signature": "0x32a733b9e3273f8fddc5228e0358b2163d421aa4ae4c797d4f56c6f64ede03c6011dc33b025da4f93dd8d27a4c5a5eafb4016d442b3833b963e3628f3c21dc0b1b",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}