{
  "manageEntity": {
    "action": "Update",
    "entityId": "631110780",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44e1b2b6fb1202b846af0be83ecd4f4f8aa5f06012e0211003df9de99b93941f",
    "signature": "0x390056eea78bfcb6beb336c499a417092242fbfbe2997fb153799d99bc561d41023ee2308ddc06ba1ad7cb76e9329598e2cba2c33603a26395220ad8b746e60b1b",
    "signer": "0x3EA35e609478cB4F9e7203de8c4322b1272D3d9C",
    "userId": "631110780"
  }
}