{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x220bb767cdba5a04483dd0e8ee660f77b2202c0ae5c993d5991a788d66ae1d63",
    "signature": "0x42ac07188f517a95b539d6ba070b66a8902881425e170484f2fef19ae791d4cd2af84809f4b3ae62bbf4e66fbb61fe970cfb46142ab2280362d5981c1b7196451b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}