{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x03b18d2b7d9f9ff0d9c75fb3188a0476787374dc784f4e0f15b9a04c6b748c9b",
    "signature": "0x59e108da6acada584580ff90013c16ceb5ee290d5f791452bf3f07edf472e39260642970b3aee1c817530d575b975320fb1146fca86c9c0b8852d72e476eb37b1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}