{
  "manageEntity": {
    "action": "Update",
    "entityId": "343291723",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2a1076abe5e25233b9def7e7e1fe120da97ef7e9986b46fccc3282b2fe19698",
    "signature": "0xaceeca1d96f8ff0223488a99eb3cd5bf2e8f352e2dfd0880a574011d5ff1469d20a7eb70f6fd7fab7812707e7e1f36caa7cf2fd64ea164c9fa18313021aa8ed51b",
    "signer": "0xeC5CAD3f8EFF83e06a67c48baac57efBB1A3a350",
    "userId": "343291723"
  }
}