{
  "manageEntity": {
    "action": "Repost",
    "entityId": "447123792",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4fca5a33013e8f155ea74afc63e0e287554e1ffd10e52b491d1300bbdfacaf2f",
    "signature": "0x4e78399ac0000b6738dcd5c4e8e474999b061422bb6aa795d32a0ace39e3b02c4ccd0c06908136bf4a22546dc566dd3ab51061c24bd0b7024d856028da3c870b1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}