{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x352530bee435a878ebc5930aae0daa5201cee69555cbd76d23ad79afa091907f",
    "signature": "0x1728d086ced5c2eff637d00a9c2c87da8fa909ce7087ee513042878db07031ac427736728ea674ed213038c2ec46c8d489a058bfdb655c5f68059eeb21887b451c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}