Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1cecae1fa3c4ceb051d1806bd7e36d437d8e687ab3e1f1696f40c3ec8380b1a0' 
  AND token = 'JrXnV1BjNpLQq4YmS1p8oh1k48lo1TvoOCNDdha240s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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