{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21839",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9a0eb560d4b3ef6044b0d75dbc536f4051140e7e1caea4f08b23366297936e42",
    "signature": "0xdfc63e686314da034364036fac725daebca1f528f50724b6c636ac18e426883a3d03630db863789cab05052e636d5889b9073517f3fe8994549c517e20f8584c1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}