{
  "manageEntity": {
    "action": "Create",
    "entityId": "1100365872",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Okay okay \",\"entity_id\":830900014,\"track_timestamp_s\":67}}",
    "nonce": "0x89e81c41951822aead073d55d67afa383156931213d0f8981b3fc431e33eb649",
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    "signer": "0xEB85867F957F2FE571521B2EEdBEF6FB4Fd9FA42",
    "userId": "440680049"
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}