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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cba5ba3c6c00bac4584aa746bfca884b26ad37cd0ec46d3c8c87f250698c2572' 
  AND token = 'aniwpo1+9hoXRLg+FIAxFYxl96R5ihtGMRPs2A75mfk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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