{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x19d5e30be1208add14f202f6204cf0350676ccb0f43bb65a166060070f3001ac",
    "signature": "0xbc51a35ec430218adee8fa416a987b13aec1e13edc4bfb482886c1fad7bc56ae73acb683ada81f8727f2b8fab79bb7388962895e709be582006e6ea496e3810d1c",
    "signer": "0x1912FC6B7317125d52bbb01C67381C923FA92aCe",
    "userId": "763473"
  }
}