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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '645bf0e872040712b7a5863ac436391b7376b35d97847eabfa621127e23f2937' 
  AND token = '1Q0ihCWiKdvDTo4no2lPoLYOXD2N10b1Q2KxYz/ptn0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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