{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30849355",
    "entityType": "User",
    "nonce": "0x4ff33d2b5b75f3c8976386c8f2963233b939e46860b3ed302db30d1369e1f909",
    "signature": "0xdc2a1ef22cf051304933ff832fcf6fadeadc5c397a8a6926f5f489b91f9a6b135dd12690f6c9b25fbddf303eccccd15013c6701e13b107d0fa082a7b505d0a021b",
    "signer": "0x6c0771bDf79a6A5766991c79F529eBb83F3a668c",
    "userId": "40009880"
  }
}