{
  "manageEntity": {
    "action": "Update",
    "entityId": "189995856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5ovbq7sexda7u72qvtfompkiilnlc24znsu74yu633p5neflskua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1716881204},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x36ad91532f69e587e96e96e8b8ef19e4e96ee80025d980f3d1d368233351ed44",
    "signature": "0xa83198661b14623783b61df121ddf9f29799123710f98abc4893213541022fe45d02dc26b35c90b514236ef4730d554cddd14677b02355859b065e4e1818b09c1b",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}