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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0addac827b32cd2b7b72641b2a372e5bc61b4cbe89924cb1c847a3c6713a66f6' 
  AND token = 'pNCX68rsI34JjqSycRj34qAM0qpWMIlYE4vlRqmAVoY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}