{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x9c77a14e6d49e7daccb74d6ece969d94b7fb2e8894a8f7170115d18517fa268b",
    "signature": "0x92e9977293e42a649151bbb401aa8eb11ccd7981f97efa03eb4d59eeb5eb100673c73a8f4dee2f4f0d6b566b685a3b1e25f9eba15e2be5ae6b9d43caf608518d1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}