{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1315607",
    "entityType": "User",
    "nonce": "0x6fcfe4f534ee60a800aeeed0a3efee6ba5a3ab96dae8a2451dfc6b40b6c04649",
    "signature": "0xf0b47ecd853cf9fc104e91b94612e3e0bb3af3e7d762b2f362b4cd4ce94e161a789da8510ad85f3ba66c9037323f07a0fdc8ec751d5ab53dadc829f89326109e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}