{
  "manageEntity": {
    "action": "Update",
    "entityId": "775162906",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1fde60b29530b966b2eb464bb130ba9878bb68483738ad513d0c0bd6a0c6e63f",
    "signature": "0x6961169504291af75e7e426efd109a8040e1cf95c1e9cd05f29f1b1e0ff584792c407c233d307bd414d0a324c44e6d45308be5e228296e22f490a997199517321c",
    "signer": "0x9d7C46d9b83c89Cb8079993d3E5EC98DD04dB168",
    "userId": "775162906"
  }
}