{
  "manageEntity": {
    "action": "Repost",
    "entityId": "603155444",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x79c40ee6bf4f67f48fd98ade16d6b233a22c2458b7abbcc4b4d8ff7e99e1ccd4",
    "signature": "0x9f32e58c88b5de953441eaf6c74b4a2cd93f76a3bb9026125383dce693f4833f172c7504cb8a3f48102868c12fc4f384ba9fcbc2fb45896967a48affd7c209fb1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}