{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x72c4a7db2a772ceac236eea324b65ae324efedb5b53bea312b0a3d4233e49fe8",
    "signature": "0x42710501b2ac6d22a10d328dce20e7af11a0b683ad3c6a4b5ed34bde3e5da1fa5370384c9ae64531433df9fd77e1430f3bef1f83e0e862aa5c0df352cd75cca11c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}