{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x586fcf1243563f86626bbfdc1486ad7d5abda377352a298946050b26502faa1c",
    "signature": "0xf05e2c1a90ff302de3b8ec34c41dd889716a999b9e56fbb5e3169e6948e008d73b622301bc5fdc90fac508a33c13957c91b702fda044e72a2c6aed124b6ecdd61b",
    "signer": "0x43f0B8D1d2f9D2a154b9028969a81FF05029c7DF",
    "userId": "246212311"
  }
}