{
  "manageEntity": {
    "action": "Repost",
    "entityId": "512559",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x024a749ae7d2c5d0e55bffe0c28d90294e73bba301216e1ff086dfc3f9101600",
    "signature": "0x47d8783794d3e25ca1babb57ef8da3ccdc5fb80b6e9d7eb4ac831557c1867ee5110b27666264f3d6ccc45daf0ac844d79253b8818adc6a0eef16dea934e051561b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}