Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59e453b14bb56ad08142de277103c9eac71b185bd03bb3ed5770aff01437f478' 
  AND token = 'hw4pgwl12dBb0s3Oklt3e7QCGY+hhMV8vZkhp+EQBmg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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