{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20671471",
    "entityType": "User",
    "nonce": "0x0b977151555180a6a761aa8e3681444cce63cb09e42e413751bab3385ecbb36c",
    "signature": "0x984103b1e08b770866ac9f3d8cdf11b6299d125b99d3492516c11477bba1c7de28193641478aafd1e464aa1cf69eb76f36d1b44661987a460d7bd5a448b20dc71b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}