{
  "manageEntity": {
    "action": "Repost",
    "entityId": "507638",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa39ecb00bd724d68514e60c34fb3dcbe4467f0be8cbf1debaad15075741c2b4b",
    "signature": "0x9a38ceecd1225b00ba124b03e638ba875b498a231c0ffce02acf9483227f34e26fc28ae8d9e362b3bbe05e66efb5b1e27e3099d292fe78db999ae93908c5e6df1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}