{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261999",
    "entityType": "User",
    "nonce": "0x265a7c76bf29821a230018e742016598973e8805cdbbe7b9ca680c73858a8427",
    "signature": "0x20710109d337cc2e30cc56f748e0ec1bd6bfc9a7cef416af64a5a7e53201256670998cacac4bccfcf62391ede8b4a2baf782f39590deef161532550e4d4395f41c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}