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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09caae9997cab9958449a65c45f83558e411b0c69d4f29cdbef098af55d3e2eb' 
  AND token = 'V+8O7m+MXyme/zR0oJpZdd5DJOyX5Cu8k2AXYyvDzr0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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