{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99913",
    "entityType": "User",
    "nonce": "0xf4b0fbf43bee2f5d25a9953d56ade6be18a3621990b19694db16a8aa4c46f299",
    "signature": "0x381347a1a65b81818a3c69d885e0800ec13169f3492c89e2b3914a2faf456a3f34ec88b7eedc18afa06bd7a5014c311ab137f9a7f87f12171be28fb90fa816961b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}