{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc40940649ed3886e3c187f5bfa0e1e9cbd352218b84845edfff5e5cb0b319961",
    "signature": "0x01bf31bc2ab9c8966f10b379d1466ec03d20269e8b7d8ee150524b1b117bea210135dc573bcadb1a567bb05414f12d57c847d33bf75e831f1ad62b8a11f668dd1b",
    "signer": "0x08630b2239eEb0e6614BD7da287d651Db66e9230",
    "userId": "850412910"
  }
}