{
  "manageEntity": {
    "action": "Update",
    "entityId": "697295895",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierat5coj3rsq6e7qyr4ub3ip46faiuzajybsh7nkzvehwsm3pm3ugxq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1595824732}]}}}",
    "nonce": "0x6ad144dd53a516393f4bf48b1b8007db86697ddc6795389b15d2387ed551ad4e",
    "signature": "0x45522d4f2e3a53e4470bbbfea901f160221e2307e2662c5f511c7e56f250fa9e0e9c191029c4279e802e0c188fc3cfbda3c736bcbcb5eea2b22435da86bf2b281b",
    "signer": "0xEBBE44b94C00386BDdAf990DBE00c1B04a9FEF1C",
    "userId": "697295895"
  }
}