{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x46631b66cccc03487087166b591f983b45e70666536057c1ecd4d0923ad95e7c",
    "signature": "0xf27b965554a1346a61754ceecd88818a1527bb6ce5eb2741380f74594ad8600e13a8a4c751f7aaf2e906723b3313f11079fa2a110629f759225ad1fec50b369f1b",
    "signer": "0x0319D614D59F18154d648c7A48469504C3690FdE",
    "userId": "852879658"
  }
}