{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335443",
    "entityType": "User",
    "nonce": "0x6ea86b5fd8a08e1280b7f0391f6549113b9fa41af265510b5881e19237394e05",
    "signature": "0xc181c40c41123165de96a9f177bf00d2c751c021214f87f425ab6046f986b8311d07baa51d22de6f3e26516f93f8fe50f299572df4ac9fcfc99dbb52b76d43971b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}