{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318682",
    "entityType": "User",
    "nonce": "0x3171ffd01e375bd56d1d1529d13f1b65d0542bcd2187ee51b8a4ee63bb1019f7",
    "signature": "0x57808c3cfba3c634f7b3758345e5eb2b9ea9c9e99dacb33621c498a15c1b7a8b4be784108acebe20f3a6a369d40663ea8d43f8ba495634d0508403662c6f7e0b1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}