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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5641071d8d9b05a11959ef9f38cfc6ca43f0b54cd6aa1d347f2ac06cead5ce18' 
  AND token = 'TA8gx2LVgENtNERC6k6hhQH6gs8Q/ZkGX/BYUdk6K8o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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