{
  "manageEntity": {
    "action": "Save",
    "entityId": "1885468022",
    "entityType": "Track",
    "nonce": "0xa7041d5c83796fd3c5ff0b3fab6ad374d7819315d5b46b624ffe49407079d4f9",
    "signature": "0x8c6ea8dab6ecdd20350d69510152773e2ada937054d102036b50b83ba39dcff450f818eba4883471ae391e2f1abbcd6f7e0e6e7434d1fa1271bd0c6355c2850a1b",
    "signer": "0x71e35218A12461fCdED331229da8B112D05f101E",
    "userId": "826230967"
  }
}