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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd0935ff2050526fae1df66d78773ca6f8e66c1ac2a966c83d0d99e9792731c46' 
  AND token = 'k1oFfR2OrTm92pALA1PoOjuqLTeL9tFDkc6/rd4f3EI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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