{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721900",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1ac4249fb421860652abf63aff15525ff25aad072c0ccbe950c12a0744101bda",
    "signature": "0x688709413e0426d3d39d94dbcb993ed906c928c0189fc7dcedbc136b3cad7895166929be15896a1debd1489d5811d7dd7fdeb7184ddd8fe02aaaeed401033a8e1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}