{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1499535213",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x043b22aef6d7edec1f2a6f4e13468c222de4031bffad79a849e8306cb12c3c30",
    "signature": "0x437c5a0e7c99a1363a1fc540b63389bd6725c066375bc0c33363cd04771811504f254dcb7d42b4d5877b91ade8d6b1187b7dd12037184f3876e0cca992caba7a1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}