{
  "manageEntity": {
    "action": "Create",
    "entityId": "1182218325",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"yesssss\",\"entity_id\":1961844209,\"track_timestamp_s\":21}}",
    "nonce": "0x6a41188a595d38d662c568265463aa382c81e9f75143a1b52248391b0cbe3b2f",
    "signature": "0x4fa8e80f8e67d866e29bca253512e0b3d76cf260f0c3bd3d207fbd9855f165403b42987f98c1710d3b440c82866e364906c9baf8dc1438a0a4f862f944d183411b",
    "signer": "0x28945B345Dc8334c21B4e932dA506ca6Fac7e18a",
    "userId": "290283513"
  }
}