{
  "manageEntity": {
    "action": "Update",
    "entityId": "773349352",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraibwsp3zvgn2oszbuya5ibs42qeb3e2czrqq57yqd7rwlpchxdaqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1560800436}]}}}",
    "nonce": "0xced66cfe153925fad42e534eeec3a6dbcb4db4a97dbf7c35320b0cb0b875264b",
    "signature": "0xc018f31617c5b46093b10f10cb0b82f5e05554204fb812690c7d7baa4748161115107626431e93be35966974c8b314667fb924f7907162cf36195c9873908e071b",
    "signer": "0x063914dBEA89B25900ee50A22fd886126FCbCFdE",
    "userId": "773349352"
  }
}