{
  "manageEntity": {
    "action": "Repost",
    "entityId": "639758",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x543e56814ac78c8ef397c019da7a1f1c746cf7d133d3e4287f849c59ac7b1c71",
    "signature": "0x88bfaca8c20e915ea53039c5edb5ce880d370d6d8bfa10914430abe5b0ce71e94a6f5bf2813d897c9f7667dd82e2c42b046f3ec3fbb59673193ce46fcc10771a1c",
    "signer": "0x484d8957F3f2AAC8A75b6c9769692fB7Bf806850",
    "userId": "413536646"
  }
}