{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621723",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4c04118320b0948d85bc3805af3b1447f2ef09729f7c5d4265a4704ccb8cb43c",
    "signature": "0x58fa4d3d640a73ff1ac69afd5c88c65f3746bc64066ddde065d0cf1930ce4da06341e9d13f56ebfa0e3f94f225af2b754e835928d8d12119457d39a3ee6936771b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}