{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x5a7c66bb541df676b2d2c9ac2563c0600b32756befda18af09fafac916ba13e2",
    "signature": "0xd09feb78bb2032f82276e84def4fd20ca10edc7f9d90c968f01a1cd4cdde7514462469c6f24f65c4d3d6f1354235fbe04d98ea09ca530078dc48351a86e5f9711c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}