{
  "manageEntity": {
    "action": "Repost",
    "entityId": "755138",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xe273db3312e591de8e1a61d731ed4db38b87d02f1007d7b01225210ed54cb379",
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    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
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}