{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1cebd8c9200c4683d251a5b2f11c1ffe5cba451a8b1b42acb227f6a40737c02e",
    "signature": "0x98df76884589d18e0982c2d7cc0cc75f7f02ebe28ada446a22336db3f9015ad148436bc686ad799ddd6b6db818b09d6a3f2aa21a558274de81b3f20862468cc61c",
    "signer": "0x930E3fb601eFF8837d755287D3C5fc4E54D1E35A",
    "userId": "932106099"
  }
}