{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x2828b2d694598c582a40ac79649bfde428f226fe37ba2aab54054bbf36458010",
    "signature": "0x88bec41d820218138bd0e638564d2c14f871480f498296efa1063e379246fa6835d05dbfcdfd1d2834e0a5978e5ecf6177562912d052ea812154ca66e8d6ffac1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}