{
  "manageEntity": {
    "action": "Update",
    "entityId": "461761656",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazaglqbr436rjdh7donqzkhk3t56dhyjakdmtn77tkarfna2d56bq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":323440843}]}}}",
    "nonce": "0x487b618962e1feed38ff4fe4e58c5e81fca7939c7aedfdd7316a8800a8f543ac",
    "signature": "0xbb72a2df28eaa9371a8516a1d69fe876a8776cd15996c2fe758453842a58d92d43065625ded1bfe2029113ad8ffeb9618e8fb70e5fd81b943fdc2e0cf3e0e2491c",
    "signer": "0xB1F7c19dc841aeAe6fbb5808f71BdE7094ce627E",
    "userId": "461761656"
  }
}