{
  "manageEntity": {
    "action": "Repost",
    "entityId": "391523",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa15ebde8fb39467193a47b3f1bc7c838d4fe9e902778d2ab59ddfa4ca8c0f354",
    "signature": "0x91ebfcc62139efc11d32e55a7b13b54f8802d84f5a343900006402d320c1447b391946bd05fb04ca135517982d79058cd6c5e0bce9d85bb1691c07943a6bf82a1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}