{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe1a2b9155406dd59146dff52c712f2bdc0ea9c61876b79b17d5cea69022ac15",
    "signature": "0x05695755c02e749e500b626aa27c7fa429c19909e62433dddf0c65cb16deef770c3410d25991a5367b5ac60c7bae4aa2620793dba14cd2d82ce5fc6de4a9e8e11b",
    "signer": "0x22755B2d72c0de00840F2A791184AFDAeF46deA9",
    "userId": "642307805"
  }
}