{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xddb3abd7383a93327168ce946a7c307a636aea1b0131d6c2d6d9a9fcdfefd78e",
    "signature": "0x1570c4552f548fe9ac73e40c189d1db1ff5a8daa3b5ec49fa2f88bdd3bf2e5f37576b4259af16d83b7218b659a701d48feb4578ceca6ecb1bd700ed70c52b76f1b",
    "signer": "0x0e3235ae4A1c5E535283E68a841EdB8148c2e7f6",
    "userId": "227810550"
  }
}