{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "944969758",
    "entityType": "User",
    "nonce": "0xc0c833685006964ec89839d4cc2e0bb7a8a65800cc89e66721cc731ebcc4d668",
    "signature": "0xee3a3f8a5164b55066892162623374e7a2872bfdf2ecdd72ddbe30ed984e0ef9215c7dc56aa2ba14146582a211fb06fd4db9b0fe6a6a8cde55d6f7af3f5f28b01b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}