{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6437",
    "entityType": "User",
    "nonce": "0xcb7bc231fe58a14a735d3f65576c96c3b342ae6c1e14e2ef35dfed79efb7a65f",
    "signature": "0x17f50637ce82fc21c4b49aa18c7a0b834bdfe262377e37204b27c6cdfd02ebf267a2ea71a4d3cbfbc57df2be9a70ed89367abbb8df37b6c03956e0a48a3073771b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}