{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814483459",
    "entityType": "User",
    "nonce": "0x8ea03cea7de0c00d70883eca275d41fc6188ca136b114c9d9fb0463158c2bbe3",
    "signature": "0x981c79f71b2c2dbdd06665a004ae7d22683d266d531666aa5498d971f344d13e3c13ab9b5a4fc89dcf25c6ff50f32160464f09be73324b3d941a00a32f2350011c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}