{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135876",
    "entityType": "User",
    "nonce": "0x7b0da2f3e84f88a1c25c8bbb3715e138681d4930cf85ea07430fe562c6789ff2",
    "signature": "0xa5f0b2cc56fa7bacd83a3fb79713a40b39ae6e5a3b7df95e41304860fff67d4043e424a827baa0a34c907260110b1db6c2e590e32f10ee18f50a46c4cb4c94af1c",
    "signer": "0x546643B8F8164fB6dC42c93F65D31C17676Cd995",
    "userId": "305541868"
  }
}