{
  "manageEntity": {
    "action": "Create",
    "entityId": "766633552",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":2031005726,\"body\":\"hot damn!\",\"track_timestamp_s\":60}}",
    "nonce": "0xfb0371d6d2826b56aa3e85abc18a706a0101c50ca4390af3f06d356f8092519f",
    "signature": "0xccb7043b3e310b9a81a54da93dd952859f8610d662b21ccadd71f0b4fc766fd87087b6b1c28e6d4ea273e2c6399b81f4a116da7074dc4faf47aa6698d3fc30431c",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
  }
}