{
  "manageEntity": {
    "action": "Update",
    "entityId": "525303042",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc69ba0e4a4f02ed09d7eac5d2f0b390f4ad49fda9ada00b27beb3d81f77cff70",
    "signature": "0xae7278a6cc3aa403665f7538b6da7882587912353166dfad15a9c7630726e3206dbeb95feb757eb0b4e74d968f3df12ee323bb1599649af081517d5ee7bbe6141c",
    "signer": "0x37828fDe99DA8040f04a38c4037D63cEC14fEBD4",
    "userId": "525303042"
  }
}