{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3972f23757f9ccfb1d3d243d6ae4aa820423e4a82038b12bf508986776b64bce",
    "signature": "0x9555265700e05670790c47cb981dd9214264d9cb5d91670b448f56d5bd2ead9e75c3f4c865e1ab3cd6d8b10666cde14c6c1c33ae825dfbe278f01c4f36892f131b",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}