{
  "manageEntity": {
    "action": "Save",
    "entityId": "26719771",
    "entityType": "Track",
    "nonce": "0xe718f5a33cc461a76d2b5b7ee226dfa99da4cc7e6fafa1bfe087d9f567c5a122",
    "signature": "0x3c5b840c2d8125d7f19984df67fd2092c76aa383d9c2240162e84f090027bd8462240656d6d95b296f1c8e42f80ca7a93c1f0d14ecebb487346502debeeb80e71c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}