{
  "manageEntity": {
    "action": "Repost",
    "entityId": "639855980",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x991cf34213b70a32dfdd51ba5d6857f6da361123add93551c18a75dacab4041f",
    "signature": "0x94307b2409740bad50c8435f68a23c3a5e61278cefc9d2b98b6c10d6892bc6663dc6ebbabf1a433a46adc44cfb1f60f6e331fa728928c88091f3a37b8fc968561c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}