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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c77fa515853e88867df0e5083e09c9923b0b7a327ce869e2921a92873784ec67' 
  AND token = 'WMZ03X5bsYzgHFMcuNe01BApu9BUA+8gLROJ2T4h47c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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