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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '00b1126bc82b31fe9ee868831ce6323afd4f103117378b8a398494d523649033' 
  AND token = 'I91ubf/D/5xIiZLkFa7yzdPNGv+lH/x2AmIWa2ZI5Sw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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