{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x7b6869088b83e5164a65d748538ce8d22c1d26ff14c5c65c82ffedc3aad566c1",
    "signature": "0x2640dfc6cfcf3b0a6158ff43a78ac0230b543415d9a84f6b55e28964e09392112d0bed0e33a39d23a392c741e5fb47b6bfde36b45672e955e014e394b98873521b",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}