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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba7c3c466834dc3c07fb49087d324964ecd18cd4eef8ca05b277bd5cc03c4355' 
  AND token = 'F/h1wQ2Tm+d9Rz89GOJv17SR1iYOETeotSoX2uH+HsQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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