{
  "manageEntity": {
    "action": "Create",
    "entityId": "117615126",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Really emotional. Nice interpretation\",\"entity_id\":1900154437,\"track_timestamp_s\":68}}",
    "nonce": "0xce99d2410909906c67f79976fb2151f5a62ed2b75ab8af86a5e00e199f55d8b7",
    "signature": "0xdede2902d6f1049c7d3c39f6c4a73bbffd59bf141de2fe182c870b669d9a1df944aff6c5d234bff37c39d9f772cadfbd9d19ca3ee7acd030f466f55842c924d61b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}