{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0xd9a4cbe6683a961242567ceb5dde4833cc6dea76fc25aa144e5d69595c5ebd9e",
    "signature": "0xb66e9825997b38e24665061508b6ef54407c08c52d58a3409e74b2555bff5e8b3a27437bbe8dc24e0d50535d7c57dc51632b29064850053b846870f0903f25221c",
    "signer": "0x0D6F44CaD964C85a5Bb15D8c0ebAEd9f6CFc051A",
    "userId": "142063001"
  }
}