{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1238464543",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1120c0838a9a013c2264de7e9eb00d4280df98c674e13de2e08f64e9f3ecaaf2",
    "signature": "0x1b057cb44cc5fe7487921f35ee34417588796e36d5f9151ef05e41565e3a4c345163098266e3a7b63abe8bead12a3e6353647aedfa446cde245564015018b3941b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}