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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7bf054e7a39acaa41ef27a813096756640cbf55b9df1abe067e2b380ea52938c' 
  AND token = 'rd3Ic6N1nUEK9tAEvPJ7q2AuiGQ54auFemeP6hOZNWs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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