{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "34815",
    "entityType": "User",
    "nonce": "0x71eff2c44142debebe168a67c1e6360fd94751f283a38e8118ad0f6bb2d7aaff",
    "signature": "0xe08372a50a1971afc17e1d3b88cc62e655c81d3a28439af1dd0c48311a950a085d4b5d5221876291e868a235797deafbbcc3eb97517c3131d80f1fdb8dbcb48f1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}