{
  "manageEntity": {
    "action": "Update",
    "entityId": "672795663",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x012a234d9baf00713864b0e89151d79be119ef597703fc2bd15cd2379d5f0519",
    "signature": "0x33f5945449f2e0fcbb66b78c3f2955af1cbfb012e7d7282a1ce2a50982b863c77a5efbcec890f17bf6819698e0e15b6ed565f189bef9f3b4099f0f8b9d6669a61c",
    "signer": "0x5e4Fc9D12718F924F2A6498FDcB379AA8e295797",
    "userId": "672795663"
  }
}