{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79e8c35648f81cc01e38280a3c3937707c378d3cde13bff95dbf0da8d0da18a5",
    "signature": "0x7f32f9047992ca526145f2e43dacda9b015280e3cb494064f15fb164d1e35825069a38fd700d760b16575d7950d60e8a1c2b52241e155672a10f7d4aff20d19d1b",
    "signer": "0xd7fD278e39f433974953D50A37B02EAC55eFC678",
    "userId": "230922729"
  }
}