{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840653346",
    "entityType": "User",
    "nonce": "0x35f554cf25e439d65034c4d3457c0284b6b1b1db7a663ded67743f9e4feda046",
    "signature": "0x75893dc57829103005ff56527c1ddba9113400f721a1c1dc8cc055f8daa91ef4665ca7b5d2065e11eb2b162384471bfe8465bc2c9aaaf3b6554e889b59669ec81b",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}