{
  "manageEntity": {
    "action": "Create",
    "entityId": "865337968",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Algo más que bien 😮‍💨\",\"entity_id\":1866042672,\"track_timestamp_s\":20}}",
    "nonce": "0x58aa4784e9f1e77ffbfcdb2758474e763aa9f58a4f5c4b983336924343620941",
    "signature": "0x2728f4568ab009ca0cc0526a7a4a889ebc5eb8107e5d8a0288ff07cd9872e6b649115ebeda94975b9963d45b7d687627988890a770cbaf1924ba000ca1485eb81c",
    "signer": "0xA0946D7831f3cE4E852Ce35CdeBB361c6Fe08d12",
    "userId": "326584"
  }
}