{
  "manageEntity": {
    "action": "Create",
    "entityId": "1277036775",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":1971759134,\"body\":\"WOAH!\",\"track_timestamp_s\":177}}",
    "nonce": "0x63c56b343127a0a7c962f6c3a0cfac7dbc17821782b750872ba3bb670d45c36d",
    "signature": "0x6e097caf3d253eac3449bc67a207fd1a7e2a1ec501a8a83f2d1af1ddebcf2218335c953754a45a885ceeb3773d400043bbe2e99991781917c3fe2f859aac1f111c",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
  }
}