{
  "manageEntity": {
    "action": "Create",
    "entityId": "327441049",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"smooooth love it \",\"entity_id\":888747466,\"track_timestamp_s\":152}}",
    "nonce": "0x9e8d0b0889b50c7b5dcf564a3705b4173a8c91e15b41b6fe8c0fd092d26e1698",
    "signature": "0x2e76babb325a208b5f2ab0d98187418d16b4c81d05e27d81b1938630962d03110fe33a1ff8472064feef3aeb369f0031879dc23573694249b33cd52bf57ee32a1c",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "301637"
  }
}