{
  "manageEntity": {
    "action": "Save",
    "entityId": "1069579571",
    "entityType": "Track",
    "nonce": "0x9ca6c0e4c1243216465bd36a6daa36f0c3c68718ef2d1730dcad3385f2f25d6d",
    "signature": "0x9353267c181274699d86fb6e98c8b20dc770671a58dea6712f8c24087507328926918b5c462c93e115f13dd10111224857774f9cf12e785cffff218644dcd8d01b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}