{
  "manageEntity": {
    "action": "Repost",
    "entityId": "640804772",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2c0c9dc9138863466922226e01af87b82402dcd90b3369e5bc336d334bed1679",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}