{
  "manageEntity": {
    "action": "Update",
    "entityId": "194963084",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4c44b14b3b964ca5d928b80d948855713667a2ce22946575b5b7eee1d7e86f71",
    "signature": "0xadfdb1d51b02d68ad29efa851a1d400fc0fee646e5709eb6dc9d6edc4a423f1c490fb250879b96157671c907d4fcedfb7cf9413a3f1585ff6baf348e4459312e1c",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}