{
  "manageEntity": {
    "action": "Update",
    "entityId": "800813957",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x73aeb68a8bb93cd3a901345786f7af705fa8b82272b0502c2fd479efeb2b4fb4",
    "signature": "0x37de3b353c286cac209a807a887f379b4fc0edfc3a2a191c17ad8a2976fc1ca7495c6bc32453e9d0875bd909f99c6467aa77ee8fbc439cb70699191bf9a00f3e1c",
    "signer": "0x69693F4BB41084294f981d2BaEb21ac292F81DDe",
    "userId": "800813957"
  }
}