{
  "manageEntity": {
    "action": "Repost",
    "entityId": "509443002",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x32974fd78b2710c9b19d4d4042ec5f0f6d17ba7b41b97b18607a2ef7531a31d8",
    "signature": "0xf360dca1b4d698a40d181c03f4eff59709b35fd00209c0308d4ad0563429023b39cc0e58eea1c38a56f2e22eac2c4423936feeaecdbc959be85ea6570bf7ea5b1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}