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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '113d2c709a811ec9b7779dcc1e8446423b671c9b463c24c93b5a8abd0e02c9dc' 
  AND token = 'wOGcnaQ74EcnzDTM7QunMslJhPllSrKsAnja6UPPZT0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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