{
  "manageEntity": {
    "action": "Repost",
    "entityId": "542628",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x54301eefc57ba435ec0f5985723077441213619bd8654e88d7ed672072672f5e",
    "signature": "0x3252ca49c530580561c9f318384a6fb9aa68772ba3cd8f75b4d6e2d6c8b434881df12530170827255783669906c8f30de43d1330689fb4600ff9cea2c03a96821b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}