{
  "manageEntity": {
    "action": "Update",
    "entityId": "747618125",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b56af11daf2797fed029e20c6dccb3d98b79a1daf09557b9b844878dae8bf61",
    "signature": "0xb011d9d2986e67e435a1b0d710d13bb1c0226b180c49cbcb74bddedd3c25898a70b2e734fbd1321444908864afd21470c0cefebc262627608dcba86e826c8bf41b",
    "signer": "0xd0Ce8877A6844011c1c4558B3Bca9b680f45A635",
    "userId": "747618125"
  }
}