{
  "manageEntity": {
    "action": "Save",
    "entityId": "996345",
    "entityType": "Track",
    "nonce": "0xfc63262f4cdfbe5a212068d33f0b1dad77cb68d5a7d2bdce28858bcc562b57fe",
    "signature": "0x3fdfc316b4537897ff0ea6ed67e6b3fcf4c3abc914e805e630c526055867619d5284357392d294e99eff4672c13493ab58b68dc1a3f360c0436afe44b3aababe1c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}