{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609847193",
    "entityType": "User",
    "nonce": "0x596d0fb674f9a7daa642cee5d0d6409e4f7650bd4620a66cc96d5c8f3d030434",
    "signature": "0x6b7ad0f1f97b08918edba5dab35705cc5e969ddafc5e68845cffe24c89805b984e30b6c967b1fbeced1e525bf78efd9d0f9e55d55a2c500428a2fe00979489371c",
    "signer": "0x92d3aEA782A42D4B044a13a4727af9Aca3a0211F",
    "userId": "12615893"
  }
}