{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994858715",
    "entityType": "User",
    "nonce": "0x8ee3e1d74aa1e94d3ec338db0fbb7f84725f3fd594e497ba7c35510335109e48",
    "signature": "0x065195aab20dd24ab65084eda62df2668006fbc16b1eceed6ac71648ef0073786d24cb613cd6a4ae7c13e8efe90f7970859cfb0585dd32c2c1dccdde0bf7022c1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}