{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1490910069",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xc413817dacab20daa97243f20adc7deca7bf3b6cb68379d46b23b8146104fa06",
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    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}