Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '554117ff982a851a146a9a81b6f5e84cb34a1a8f2c4eb3576bee6fdde0773463' 
  AND token = 'qeS6Q0bucL32GTSL8+u3kMa0x34JPFWrKF04ySNuvhc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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