{
  "manageEntity": {
    "action": "Update",
    "entityId": "929764062",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d3ba9bbbe535b1d3b0d813e635fc2eb3dfab3301a10424131746c8f7489eda6",
    "signature": "0x9c7a232afde57c96a6bf17b61af4c35756d7a0a819d0ef3748f9bca9d1463d1603d758d748ddc9261f7dd08af6bf8a00e1fbe33528917ab8b32d4b4f12e2d80c1b",
    "signer": "0x0203e5FA12FeeeE7E3b6A6d22DfBdE7885B5c7C4",
    "userId": "929764062"
  }
}