{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0967664e2b43d273955acc147684c95b2b0ee89f723b4b5d258d15df087c193a",
    "signature": "0x62a4b759fc652633b8c63545f81911f7630c144bdf5f8187d835a7b8d3ebb9d146a975e52c9541649cb6b740469eadadea523c6981a257322085acaf742a701e1b",
    "signer": "0x0CD77BAA24d6dF131Ff4Ec67096876EB52647c94",
    "userId": "577309686"
  }
}