{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711757920",
    "entityType": "User",
    "nonce": "0xc48a1492aea99aed4cff521487d6df32cf2d53aeee3f1d89d789d43c00e08d9b",
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    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}