{
  "manageEntity": {
    "action": "Update",
    "entityId": "778093041",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a74d03221fc24429dd20537e9b6e69bd81fbbcdc3f4738037deb88940ef53ad",
    "signature": "0x58a9d1f4f05b6c2c0a242055fba397ed56484b67358a2293556acf9514f5db3f3f6917932852702562355197c9d0728dfc67de885ee7274c9512325ab009a0331b",
    "signer": "0x2F50f86Be5E8E960a8A80aff85106ed93A2c681B",
    "userId": "778093041"
  }
}