{
  "manageEntity": {
    "action": "Repost",
    "entityId": "789129",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x87c425d0d62a5aed38ec452167f993e16720b355f5bc15d853604810fc4fa842",
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    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
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}