{
  "manageEntity": {
    "action": "Update",
    "entityId": "917830143",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x143d0318234f1c3cfff1c6bc565786bff55efd92bdd808a986c5758dbbcdf6fa",
    "signature": "0x96b3c497312e6a73dac6e676c2169512cc87a5223dcb2c6517fbf0057018f3c26e4c151301a6b240f8055c97f81fc957dd9c345ce589afc1712257fdecc206521c",
    "signer": "0xd0a859CF2624a008D7A044Fc8d234f7A34024587",
    "userId": "917830143"
  }
}