{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x2ad8559c76e388e2fd83931a7ee323533d19994ec5bf939dcdd7b20e7b0c04dc",
    "signature": "0x4e327308655c20e3e6db79e63fd0af447fe7fb8b0f00e84bad80fb6381b04c287a6f4bc7e6684d1e489bbfd262d89cbf8bdfc9d3684802c8b90fb1f1505aedb31b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}