{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xaaf5d3aae089208b5c18d814f8b4a08c65ff45b38915c54d9beda9402641b47d",
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    "signer": "0xC5519269d3Bb86a61182ed7e7A79e2577b1CEfE2",
    "userId": "711370599"
  }
}