{
  "manageEntity": {
    "action": "Create",
    "entityId": "224401932",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Like it\",\"entity_id\":2070534410,\"track_timestamp_s\":252}}",
    "nonce": "0x640f1e085a10c8beeb893e7801fc1ad608bce17b6822cd27c4f35d21042bc9a9",
    "signature": "0x3221899ce1375b771003d33099a219b171492d7548c4c5b8bf4b4e09cf7a6b9914d1d4bbfd633080d4b7bca8fe446c590ced5b1fcb812acfad2a017da922b7f91c",
    "signer": "0xb6b93847154a4D18ffF590EbeF00F4A4197F4905",
    "userId": "375133"
  }
}