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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64fbd74b282d51175b277d6446614c635a7a816bf9ca0441ae7b03926382e1eb' 
  AND token = 'ZAwuIrhfaQDjItnSWkITpIX5MEdHDUXKR7lVNN30IDU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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