{
  "manageEntity": {
    "action": "Repost",
    "entityId": "578917600",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xe73fe2658a1480da4b0ea584e6090acc4ab0be041fba57b13c93bc12658e7bf9",
    "signature": "0x9a8370bd5082617f037d65b1779e3e69d0137fdd7fe68caab5b1786bbfdfeb843934f9886e95cf8275c1d4dc36fd8370c6f66ff6ca35de241c88843b2528cb951c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}