{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65784",
    "entityType": "User",
    "nonce": "0xdc1773e25991fba739510f8f5235785b1dbe59ff761aee17da1510e758cb2e1e",
    "signature": "0xd79d5fe3a734b2387bc2c3ed91db9419db70a44d18498191aa44d1c687fd1e475b4695582191a58e1e9f4f29e2f4e42864633c5eb133799e1c757a0cf12f35cb1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}