{
  "manageEntity": {
    "action": "Save",
    "entityId": "1322840173",
    "entityType": "Track",
    "nonce": "0x8bebe3c59f7b440c308994254ae3dab2d6007b8f45fd3b80724b295ed2f1dee2",
    "signature": "0x309802d0a0d4f4c14a234ca1a54322fc1525b7fc9f64f2c649e4b10ef577bad148676cdb3923e220c81a5322fb1c64efac6f9ccf737a703539b4774bf34b97981b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}