{
  "manageEntity": {
    "action": "Save",
    "entityId": "1791785759",
    "entityType": "Track",
    "nonce": "0x059c2dafbf78595f68098356f71637abd0f129406a88d27b5b69881defca200b",
    "signature": "0x376d2d0a70100053e0c46cccfaea506b0bdd5b6923709c3931c471bcac8661874e07face8af6915ec25a5d20a348a47d10ee8d14f2de304bf4be1681216e660a1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}