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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '224ae1b45dfeba71dd998e4a83f6e3ffda43d90abd172f0135d5f2a9fc33a21c' 
  AND token = 'XdmcKcAJ5WZlnM7l/Q5YcpBKNF+bWeEgKelQE61T/CQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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