{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4959",
    "entityType": "User",
    "nonce": "0x3bdc3437efb4f0010189b81fb4fe4aae2d8f46a7c99d125728f0a4ea29a008b7",
    "signature": "0x7e19ccc775cc8363054c0e43d8db0d0968c9331d718c84962bbfd68829a988373d7d35d6a41ee755eb94cf03577f6582fbc5e3b9b3c0f4e9499b5ca4a40f5d481c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}