{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1539955562",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x748638e52e332845717aba5e7549fd3cd800ef1e94a90c7c4e6dcc1b7f0f6144",
    "signature": "0xf602fb8d2812ade942e03566bff202b5cffb0d450dd645c97022369149a295806c19b5cb900fbe7b236d9eac02b98601ffb5a1070aa51ee00dab18641a2354ff1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}