Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4971eb27c74ea34c882c5e906d7a8a6187850a1b7275c62c3450b6155ad7acb3' 
  AND token = 'oCNwoaTO2BHGUzH90Xjh7/bA0NmcwclqTrYFmKFFJcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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