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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea3052e8876d1900d0e0d834f2b7166733ded5a030cbee4d7772cdbfdba53620' 
  AND token = '4Yp/vZ+MvO6g0B0ibin2RYuNNLrZYCQ9LdgIUp87jbs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00132

JSON explain

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