{
  "manageEntity": {
    "action": "Update",
    "entityId": "903251667",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraih5icoxinscvbzwolu6xhuejlpucqa7k2rylatojmyl4wbakbzxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":513918041}]}}}",
    "nonce": "0x58cd40f087f51db096bfc566a8c0f936014514e7057d5e0231990cde7e91738d",
    "signature": "0x876ef14ffb3cdad5a2fdfa2a60b92d098d96432195286d2715e18e457a272cab17525d495e3e00ac51b2358d23acb0cec0a6151876505355d783056d6efb976f1b",
    "signer": "0x0bADAcB5BD8eC37096c8448C192eA49B12c4A1D1",
    "userId": "903251667"
  }
}