{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xf10d9971d41f984cfc67eacc77b175c9b9d229edad9f92b93a6f1f4903f203a4",
    "signature": "0x285af65cd3939098eb79509537f41bfaa588ff8b38ca45aa05fbf107c3f600f3436cc156ed5e0851cdda77f84638b0bbebac7262726b22e5e791c878122225f41b",
    "signer": "0x1c0283fdcbe81bF505e09C42B6B21F079362F926",
    "userId": "255494081"
  }
}