{
  "manageEntity": {
    "action": "Repost",
    "entityId": "754459507",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x780507a2858a7f83d034edf854a57b718fa34f201af35ea7ccc51d36c64ae3e7",
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    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
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}