{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57448",
    "entityType": "User",
    "nonce": "0x8e6011175289fd9501c55ce6c86238af2e6ef76fda25e6afa5d517d1ed626144",
    "signature": "0x3f7b768f1276150d4404f079d8e67839c1a006bd804773c19baaec96964e39762134c94d1a027e5dc5c7adb3dda118912d9194bd084e9661f510b268bcf30d1b1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}