{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721900",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x36aa2b0fed447e7c0ca143101cba1876333f31486c679b5eb920a016b040891e",
    "signature": "0x6f162a9aa3a4b5ff7e47a74f428d14cc8df0073778252a5ff87032a90458d4702839898558942d1218f7bc3854c499aae77ad4ecfade161c3e68d200df1be73e1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}