{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314426",
    "entityType": "User",
    "nonce": "0x285fd56bb872b76dda91ae3cc23ff64f2dd5715d2f5598723132b183e70590cc",
    "signature": "0xfaa687c1380b843f92b45238d2bcd75af49656c54bef288f460769ba7949a30844788649a369e6d94006e62c30acf7cf56e72d770ebe29d8534e06d14553f17c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}