{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0xb5179147b8cdb9957449383a578a1e0c2f5463c7febb3239b45803e05c89ad96",
    "signature": "0x7a04f6e27b3cde36ddb54781c93f539c7f8ba88f591518bc0c10df8b1bc8556c0f03f6a644276258c14992de41debc1e3c45cacc910cfe06b6e4657123c11c081b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}