{
  "manageEntity": {
    "action": "Repost",
    "entityId": "554123",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x779184b1f300d2c8a1dac713241d6d6049a477f63358af38ae1afade3235012a",
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    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}