{
  "manageEntity": {
    "action": "Repost",
    "entityId": "145566902",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x478550db5ee091e1697ccf1b64783c15418fcc8b5f131a1d02cf10ced594a060",
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    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}