{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x9022aa003fbf0fe00a79bb1deffb70c1e303a51b74303bf5c2b987a765215e28",
    "signature": "0x7a0b59602e363f5875a14701eb70e1eaebe18c62ded377eed93b87e36aa138e51ec21bce64770f3731ccb1d572e22e6e7a5367eab0aee891a3565d1007cc92d51b",
    "signer": "0xE319b8e64EFa56bAC1ce42cb8A54D8B3ac1fe34B",
    "userId": "130115435"
  }
}