{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x82c304274905ac0a7bfd1948e57eec757251e0f7dd212308a00a776d3909e256",
    "signature": "0x82acf2c68e46dbb6105ffeaaf8860a3c7dc3a0e4cba33aa7c5577e277623519b6fbd4e9025763cc103d14f63d24f1ea2fcf3f0b620d466738d4299b727ee4a561b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}