Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32bbec1a320484205354d2741a82a196755f567b9d5846b6b4e2b76569338c88' 
  AND token = 'Jxr1cpljutnI3yfxyn9vhqQIU3RsRN4+3BuhW61bM7Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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