{
  "manageEntity": {
    "action": "Create",
    "entityId": "68202910",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":20,\"entity_id\":1192577776,\"body\":\"banger!\",\"track_timestamp_s\":52}}",
    "nonce": "0x7be24a5906987215b638224b2bf8c64529cc4c913e6e101cdd29d2c9d84e6051",
    "signature": "0x514b61cd911272706154c8ae1cf637c398903dc738e7cd5509279d376e2217b012b2a103a6ca3a4b1d5ce86bd533ed9f2eaae1f1da0f7271826d9927bd3d77281b",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "20"
  }
}