{
  "manageEntity": {
    "action": "Repost",
    "entityId": "603018",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x12e12a336f5e101e7da690f6d70e8f9edcd89bdfb30bee9e5d535c2c7d0498bb",
    "signature": "0xecb3e01ceda6ac6969f62187741aa045be74a37c1fa5462461e606237f78d0e57164e69ccceb9e543d110605ae677d1347869fd525a5be6a9f8d82f223946a6e1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}