{
  "manageEntity": {
    "action": "Repost",
    "entityId": "574298",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2839d74e58c15041d84041025ae2f5701d477a618377a71e3768396e9859f6fa",
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    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
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}