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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ccfa4cba597d128d0a9ac4f76f6bf9da4aae6b997bb5d032bd1b1b89d09c9232' 
  AND token = 'PWmy1uIlToL0a+8S/RlAD42ExchYYJkuAIs+rho7enI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01196

JSON explain

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