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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '925b3157a0b80533a2a63f780c32e51ae6030add2563198c599f6e75d03683d9' 
  AND token = 'sv3fFP07gy8ew1viyqE3BeA4w7JAiQcZzPzLmsWQ/VA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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