{
  "manageEntity": {
    "action": "Update",
    "entityId": "43730",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieravfpx3cnp3xpgdpwuv6k4tou3sezq34pyoj7bvtbtj7o7yleztbia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":10029},{\"type\":\"playlist\",\"playlist_id\":1170394682}]}}}",
    "nonce": "0x37eeea1fecd0e0a4f0e8462d45f7851a99aafe4c6970e5fad2eba86096a16897",
    "signature": "0x3062b440366a9ea4997f654143d7ec2177e1369466d8d83bd6b556fe3c1b858c6cea0846d80f1e9aaf8268905d3be7759799d12fdb5697dd902412cacabe3bd11c",
    "signer": "0x4552F9dF93B28CD051ba9606D8b732e5BD5F6B2a",
    "userId": "43730"
  }
}