{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1408355930",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x434435b7861ad152cdb9aec228d996afbe95799832c25229d51782e3418f60a9",
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    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}