{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x564f86daded91ce63bd31c1bbeaad0ce54e5815bed4db636ee0d2101bc296c3e",
    "signature": "0x1ffc3c6cbc4d8b6af57a050c13c10d650b71af81e9098b7a02561a992be815a0749f26313825e2796f3713528c0892c10cd30780b9de362e64230f28b56116341b",
    "signer": "0x1914a1fe638FBEE99Cb9F8Bd023d8f3E9A32303e",
    "userId": "605937890"
  }
}