{
  "manageEntity": {
    "action": "Create",
    "entityId": "2070387434",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"FUNKY BBY\",\"entity_id\":1490866733,\"track_timestamp_s\":75}}",
    "nonce": "0x539228b180d03ce3e322c4c151a11cf763fe930d438ba80d1f58185fa5b48183",
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    "signer": "0x7Cd44Dc53B13eEA7335A000Ce36c05cDFE34b348",
    "userId": "355113"
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}