{
  "manageEntity": {
    "action": "Save",
    "entityId": "2109197223",
    "entityType": "Track",
    "nonce": "0x90fe9e70dea2674c99eb8b58997da1ea7e09ee5cedb1d31625b6fa49006c7502",
    "signature": "0x5511c5964625aac48abb2e7ccb39bba8732778e82d14c4482eea1ce38cf861573d3230462d8b7e7190d926dc53e8bed343783af741a5b1f530ff94cac50e48e51b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}