{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965042984",
    "entityType": "User",
    "nonce": "0x303c2319d307d1bf6bfb43b26109d9ea477f3abec1e0a4abb644aca31175924e",
    "signature": "0x82217107e79424edd67aebfe6d5a51c9e373352a11026f77b1408a2abbc9b7f45e5048eba8943a648ee2f741fa2ddfc08fda325e5fddacfa5f320a77a591fb261b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}