{
  "manageEntity": {
    "action": "Repost",
    "entityId": "554857155",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x72e9e656f5535d2134efddca0d4f166ac8f36114efd98ac60cab78886a361348",
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    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
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}