{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x2f2677ca69108d54ccca4156692bf6f79bf483620e569f18afc656e1bc59b4ee",
    "signature": "0x309d94179695ed713fe97b7188462832d5991d55aaad0554bc4e1cf540a576827adc50a0d861cdaa68723d4939686b4226096a4701a31748ff5b91f72ae527ac1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}