{
  "manageEntity": {
    "action": "Update",
    "entityId": "324948380",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x14e3f6bb4e4339a14e596f624fd303880998e1eaa667298e039987f9ce0c7ac2",
    "signature": "0x5bebc69418f8810bbee606fe463c6b46c73820e2a32c01f98bfa2ffa0ce78e1c274abe8bea2e2ef92f851464761f924eb35c67d41fa34617ede8db7c816f0f621c",
    "signer": "0x14b61674DBb63331349B6963490b991E7c568769",
    "userId": "324948380"
  }
}