{
  "manageEntity": {
    "action": "Update",
    "entityId": "111579",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazzfqhxvkqcpdee7ogxdzjywjactvfesxd67bqoath7pxtogyx3pa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":32219},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3e3dfcbc5b8520d218feb953c0496c7d272dec1293e981cc0c004ae578cb005e",
    "signature": "0x91702fe37e4e7f25ba990f9676407fe7bb0da4b950d9c78c0aba900fb1ed39fa5036c70e156ceea002cda3cf204ea0c2dd177439c7330307af69b777da3672cf1c",
    "signer": "0x14ab7027c19a202dbEA7a9218aa291D424d901e9",
    "userId": "111579"
  }
}