{
  "manageEntity": {
    "action": "Update",
    "entityId": "623099781",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x38107d4bbd650fc4b22f0034d139d098b2bcaa4896a0187ca6cf9fad076f75a6",
    "signature": "0x1756118e11aace51ff6500f67253000d75e6c27a7fa963fcbac132374d2332ec3a5182058c94879b3b508354cc9ff9f8154dc3e0235570500a6c23c091fa96c21b",
    "signer": "0xb3B0c5de0af3Bd5757ae865d115897Fc4F8a9353",
    "userId": "623099781"
  }
}