{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14",
    "entityType": "User",
    "nonce": "0x8a3848d2d1b6eba90433a83211a24881ccf7c73d715d6c85a9822c243241aec1",
    "signature": "0xe8ea86914bd67ea6f6317020ed48e4d7278edf71532653f26341a4a52d5e18df7e2648e500f5bb0af1c69f17d22436aaef2576b6d3e9b20608129907df37fd5b1b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}