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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e179e454d6819eb455e44b27717df9be68809abe91942d1e2550040ffd88a97d' 
  AND token = 'O+BqYTc39uiO/J+wF7NtW22w6Uj+t6eUD85jNsWJV+4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}