{
  "manageEntity": {
    "action": "Update",
    "entityId": "298221337",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2801e68aff573d617fe80a742973e83e0f55ea68885bb411789d27028b0b4494",
    "signature": "0xdd55130985390adf7ff2f6ea1999a3033c9266d43b68d2c6e41c28ca627d2b2b44aede65fed93553be707bb3762e3ae1045d0037eab9ba91f7cac4e1dad8c4181b",
    "signer": "0xD144Fe61E486319F0aed3A158008ec094C04Fc49",
    "userId": "298221337"
  }
}