{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389958",
    "entityType": "User",
    "nonce": "0x3dd6db7f499aae5c81107fa7631d17891b2765e77bb3bea8a32eb874559d8abb",
    "signature": "0x20e6281b87a03ade4c680ccdb8987923f980f746c93b6054cb078b965b4bee725824026ed5661d3704eb8b4cf694f80ccaf2656c2d4d6a88badfb30a2c012b031b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}