{
  "manageEntity": {
    "action": "Repost",
    "entityId": "518505198",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xaa4dd2b90f6537d04f9f944a12dde4273de76ae33fdfc1e794c1408337856377",
    "signature": "0x409b31e24fef341e8f594ca276cf13782c25b28da5b212faf01f44f5aa4349c62d1cde6b1736f150b1486edc387582729a21f3339c632dcbc3e2164faa3c0a771b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}