{
  "manageEntity": {
    "action": "Update",
    "entityId": "142361762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5btbseduoshtyzc6jpdwdqrufs4kfcpovaasqpgyvvsgpiz7strq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":78946}]}}}",
    "nonce": "0x2e71509f2c64b924940c8bf2abe943fafcca1394813aa09e81b027a93e212170",
    "signature": "0xdad9ed81aa80cf74747650e8e150ad1a89dfabf2b61558c1a40c7ee131103ff40b9ce6073b87cf098e2ec67ace17e14fe5a115335a201242179375df4ab040821c",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}