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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f1fc20213fe75a7d8dbbbc8338ea169a7c2ced32b19bf0a2c7c6ba626acb28f1' 
  AND token = '5h7BZaACD5Ltx8xRJanmYseozyJH7BJTWpqvrB67FSI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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