{
  "manageEntity": {
    "action": "Repost",
    "entityId": "421050",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x0b8da8d085c6e5e11920c5990b5dc33692fd4889decdfbd717b913aa6340c986",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
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}