{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778583001",
    "entityType": "User",
    "nonce": "0x31333106ccb9955308d22270da03a1e2ff0a56a45bc148c65656a99e8bfed8fe",
    "signature": "0xe4c482e3148ae2b1e93b6acfcdb4dbda859b14b8597c2f0819d3b213d8e70bcd3ead45eb8f2d0bb37a860f40342183b615e203bf2fe752f0d9391b6ac3806e441b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}