{
  "manageEntity": {
    "action": "Update",
    "entityId": "144930277",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe10c7f634a6e23542a070da89de0cb91ead68c7af908b3625a834334c37356cf",
    "signature": "0x5d04bced8c7766ae1cb6480913838c9efc0f36b9c8a79dcd08142c1353ff475622ce69e9ce2bbd7dc719abeee66a9f173239ae91c839f5410d14ecb25fff7adc1b",
    "signer": "0x926E97DE3519e9C44E5127B13172d09681B55D04",
    "userId": "144930277"
  }
}