{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308722",
    "entityType": "User",
    "nonce": "0x8fd1b7aa8d79a52c0545e01cc5e96f13a133eab0215ffd3180152a166a4f10ae",
    "signature": "0x3d7b9d59abed4ecd72a2d5cff694ad491c443bdb091d05f68eafab5271583d9032f36a10f245501a747d9473da4d1f0e09eb10a6454331cc952b3c8c976f04391c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}