{
  "manageEntity": {
    "action": "Update",
    "entityId": "737318260",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeb7f1244c7cc599cd93ca0c3acceae4c7c054e8f785aba9ba7c023e5395bd4e9",
    "signature": "0x3840829340c455f7d4a1ec10efebc54cb8e6d82f6c7972479463534f9337f0a07f8be5cd0a45e5e50af0d5fdcd2f655379d58a040859abcefa7cc8c36286c8d11b",
    "signer": "0x2b7EdfB2dc607dD1B490f4FCdE0843002EcD22E7",
    "userId": "737318260"
  }
}