{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149923072",
    "entityType": "User",
    "nonce": "0x0569d2c476cea9c47eeb75d8ba1d36afecdecf713e55a48d6604271af46b2ba3",
    "signature": "0x01ae4cafbaa59d5cdeea20f721ecfea45a02747c9b3610b3c4d024c944be349d457dd404e202ff5d7fc9559ffd1652c777df94c1fd9a5392095f4c1af5dc14ae1c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}