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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dda93370483ce274b8bdbeb13c8d1cc50fe58aede0d88613e615fbff104e0fb5' 
  AND token = 'LztaQit4JbbKZR7T+oA3pGoQ91rH7MP8j9fNujipF/I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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