{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995",
    "entityType": "User",
    "nonce": "0xceace1d7718e99839dcb38fc6f3e31aa7e5de5739a9ef869d43c689e2dca27d5",
    "signature": "0xb939d39d2a2a14f605deeb1a4530b8a3d9383c5e76f67db423b49bae6833aebc77680977c26237b2eb16db30db4414ea4e072dddaf9b3ec0f996f039c7ed810d1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}