{
  "manageEntity": {
    "action": "Update",
    "entityId": "324170795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazsxfitzm3lt64fku5ddz3cnxfhss3iywu7hkiiue5hqayyolhnqa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1972733550}]}}}",
    "nonce": "0x4295c06503b6c04bd96e8c9ccfb507c0f7bf95bbae301290756bd546c8e6f31c",
    "signature": "0x11cff874eac739db6d5ae4093d666b6a5c4ea1ebc8372d741fd74230b95f71787542c277cdcaffd8b4b908d82e80fbdfbc85644d14874cd9f32a23b51c6278ae1c",
    "signer": "0x7212FC9b44b2BB370D62E8b98dA3f7D74c307696",
    "userId": "324170795"
  }
}