{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372009",
    "entityType": "User",
    "nonce": "0x12f4b38ee94feaefaf277914ff28edcf3ad78801d344642cb0b81595c66d7e7f",
    "signature": "0xee6f3dc829373a0fa3dc06812ebc7be61dbea4ecf7b21c05fae6f4e43b00f76459afb49685dbc2fbd5f2e1da76b59812556dde325f2c22d97938d56bb1fe4f651b",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}