Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'dda92aafaec009e7a98073669757b4bc5471d0c7d84bd61b409568885ca5e39d' 
  AND token = 'EX4X+b+omeqISuMpx/G/91ISItAD/FnwOQj08wMG94U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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