{
  "manageEntity": {
    "action": "Create",
    "entityId": "1376875767",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":1662979906,\"body\":\"dope!\",\"track_timestamp_s\":69}}",
    "nonce": "0xe9072558bec3b176426de1ed4e490c529a879e0b9f13fde4be8b3b7b4ca23c53",
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    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
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}