Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'dd015f36eb354fcd27bb28f3331ab0d485838c68668ddfca2bc8f76c907b0d63' 
  AND token = 'HtVstq4J3XJ0+XP+qxaaCXYcyYbeCnG3/UFRHyyPA9I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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