{
  "manageEntity": {
    "action": "Update",
    "entityId": "860699447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfa61361cdff60aa94c5e5849a3c162975f08dd7847d5f5e23528aed7cbe936ce",
    "signature": "0x7d39751dcbd071215499b8d4ce01ca8affeb1394f9e74f01041edfa6dce9ff0475a710b4a7731db2eb67c55611eeb8390e1596c3f81cbdd51f6a4ad480d34e231c",
    "signer": "0xb52E8FcE6ECCedf0147ce1d916621AB9fdA52bEB",
    "userId": "860699447"
  }
}