{
  "manageEntity": {
    "action": "Repost",
    "entityId": "538901",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5619a793cdfeaf675162f9371874172525bdd9484960ccbd11530d9410fc5361",
    "signature": "0x8d084de8b2e5e46195df20f9f8a8d47d4c897ecf7a15b23a3e909b071c33d29b7ea8a6382ac3bf6ef33984262ccab97ef2ddb54ffad4d449fbf24a15f66fbacf1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}