{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x857ed9efa4ed1d9b731fe042947b00d3d960a125f67238d11e5490dff91ecc7e",
    "signature": "0xaf66f75b0ecd3e5e6bf6435f2e057e15de4b1fa68b0cf4ee235803683f237e651697fda06e404b68a647283b0d181c1c5c1dc2a7a09fb7892f151d2dd9a8957b1c",
    "signer": "0xCc5Aed9BE826c627caA43395e3D4a4901C038d11",
    "userId": "117967169"
  }
}