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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6185b4ae52b2cad7de249923b2930286907a7b25c0985ed59399a968483c26a5' 
  AND token = 'NHm70MLQo3gzhpJzdCPbdk44kIUWsUZViHKttyX2aFE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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