{
  "manageEntity": {
    "action": "Update",
    "entityId": "593502567",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb5972885bec3aeb21c7511fb96145e910d82b51302dd8b3eb6424fd970c732bf",
    "signature": "0x56d1ee061ca22a39a39f89980c3d47a23a0d5e1730ad6563a777f0dbec36118e78829c8c6d7a306eaa26bba9cec1397f5a7af865bb4cc184febef75f9e7a12d91b",
    "signer": "0x5c8AfDEAc05FbB157876C04BF36E221C2318278E",
    "userId": "593502567"
  }
}