{
  "manageEntity": {
    "action": "Repost",
    "entityId": "503209367",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xcfa5fbcc4f888e0f8541124d125e60424a02c2776fca01b1b689a9b3bf9fd100",
    "signature": "0x13db0270c48411ea64a8701b63cf4b7ccb6d2c6d239f755e87a5e0fbfa35430e5a8c033f004d8cea8df086f68e84e2af216d86f9fa019801103e5ec90e88d1ab1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}