{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349233",
    "entityType": "User",
    "nonce": "0x654bdb71e5e4a258acd526dda21a165be34a3c5b1c2a94d050f70ea7a62660a3",
    "signature": "0x3ecf0c11b1d831efed3b47cacdc498928503c0ef70d1cdb16e32cf3a5402f4b971c6c4376f6769a122bc2bf4464b9e94759f7d175c0572bc0dc2f3591bbb442e1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}