{
  "manageEntity": {
    "action": "Update",
    "entityId": "403030589",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb4ef93996800ac1ed129dd8d72d89e3b05a947c6e5acde555bf6f74f9e98d317",
    "signature": "0xf92913b35f089c567db13416f3b2609d9aa6643a5a2aa698e942974f0d3f6b61134f70e32611cf9e734cb4f31e0b2f150293c6725ccc54e3037208b3c2ccb0ba1c",
    "signer": "0xE988e6Eebc4127285f629AE1492891F39a8a127F",
    "userId": "403030589"
  }
}