{
  "manageEntity": {
    "action": "Repost",
    "entityId": "590885",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb1b1c964fcfeaea1d9290dac72d57c972b4af89f8fe87fb2a8810c57a33a319d",
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    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}