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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a1ad8d5c0c0bec8bc8caaddbfdcdb1b58b95affda32cba831245ab99a0c09b11' 
  AND token = '/I4Gs/G5jyCFJjkT+8+c9eJK1PBQZtzTv7Y1SLLPmUY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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