{
  "manageEntity": {
    "action": "Update",
    "entityId": "617481694",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x360282dd54a617470962429b208c52e2cdcc09940564d4969348a9a50641f1e0",
    "signature": "0x39fd19928841295f6b76ea9ff711f7cc53c7bc099d1ac4a3c442917c3793961a3aa0fdf0f2bd311cef3f55204340250abb990f6a56e54ebbc99374bcf1d02ca81c",
    "signer": "0xE8D6E5670A532CCA8099b7a222615B795D7E17CD",
    "userId": "617481694"
  }
}