{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xc54543704217b72db78cb4a2df286d95c2d2102a9cad9915a50cf3748404a134",
    "signature": "0x74c75360ce33603656ceed3303aace1379cfa8f962f5c3fe6ebf4bd64a7c8a9f76352895c77a9a327c22de4ffaa7ddd8861b6941932635232ff0e7b003dfa7af1c",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}