{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11378a2a94d8c09c1a11c623a6986eb0732a63024fdffde2a00c18ca8c3e09c0",
    "signature": "0xa6b26a5c649f4dceee61fc029df2b0dc2d850e10fb8c8ef1b4b626f854caa1756ebcdce80c1013dff4e57c02551326c9a7a6fdb39246c75519240710e0fce5781b",
    "signer": "0x1E6Afc292BC4aD8fB8313a3E0B1923E383aAF05c",
    "userId": "72110324"
  }
}