{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138983",
    "entityType": "User",
    "nonce": "0x1a8cee2ecaab3f7b47dc990c217b106d1864786b514fc111965b90741c25ba18",
    "signature": "0x0a4b76d479fea2d6eeff6885ba887fd81439f224459c3e4a37343abddba038013aebebaf0f22ba46f42ef369824d56c311d1f93714311cec05ba0ddada12bded1b",
    "signer": "0xC3B8Db4fD6b5608e625Fc02e4e8B7a274B7dB687",
    "userId": "110486155"
  }
}