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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '87285635090ea49c9a673adb7e1967e6af2ce63133491bf54d0823bba7759492' 
  AND token = '8ziDlo9qPlXFkuokxIR6t8xwL6OFTj5vu4dnJQ4tw+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00084

JSON explain

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