{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27909",
    "entityType": "User",
    "nonce": "0xb04abd13d0dbe0ab27e39351b644395c4a254915878f42b953079280a13cdd44",
    "signature": "0x1e71446faec6611ab9626f200044404d7212b683de2594259371ccf4ef477ab20748216e4855bbcaac12f09f5f7a19e8875a9f7ad5bbd4e6878b5663a2336ecc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}