{
  "manageEntity": {
    "action": "Create",
    "entityId": "2093649023",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":20,\"entity_id\":1190146876,\"body\":\"yesss!\",\"track_timestamp_s\":36}}",
    "nonce": "0x1485ffbd95009f14f49aa6a30d8e097773eb79327bde2168f652bba29b5c607d",
    "signature": "0x2a26a78c22d40e5e3a24a8b022a33e2b4d74db4cd02a94243e3ab9865b02135d484034a775a37713d0e557605d6eaff8a26a48d26244bf523d7e27251fbfa3f11c",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "20"
  }
}