{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324297",
    "entityType": "User",
    "nonce": "0xa5299246dfa2e79570d9ae7ff4af5cc9710f9e2edea4e52cafe6d4e0988f0f31",
    "signature": "0xa0b21aac00fc45fe9ed0710ef4fbd84f006ea83a705c3baeb48fda937b873a7d26be92c8ee6e982da9cdc6f8d6606da25746b538cf39966f419a673d33c61d101c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}