{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x42d4eec590acd81cce1c30083212547a8a5fab3e450dae1874a9108f5f0587cb",
    "signature": "0x915912abf97bb69f6f7b088ffb4b51721fbd0597f8bc2f1a1e28c02a709788e30b08f388f11a9e96fa07ef0bacb77b727d2e4dd555126d9a17ce5b3037fe0bc71c",
    "signer": "0x8bB2d59839F95A0C496755E97A05A5857d4bFa36",
    "userId": "640004788"
  }
}