{
  "manageEntity": {
    "action": "Save",
    "entityId": "1070460475",
    "entityType": "Track",
    "nonce": "0x21e68a511ff8e1a6cd53b9a30e1fc8b47327d84a6dbf514ccab0db603e460b68",
    "signature": "0xd41d94eec9bd0fca1e87d78ffd7d9c406274eebfbc6aad08e323b139904cc1832a4617f0d0a6547e9599b90b8bcd1dbec670d2e7293cc8d3e4439faa732dc2a31b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}