{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60784b36456808706eb6db8da8bb33cf1da41b734e4aef09a06c0700d37c706f",
    "signature": "0xd7083baad27dbfd16c90e82ce925e639e838748b974dbaedbce1363fa51031ff7f987d247def219c3ee3de0c5b84a928bfa46047906300967fff519bd8b38cff1c",
    "signer": "0x3e2f371b51fe149Cc5CFD660DaDec117C9818376",
    "userId": "785674160"
  }
}