{
  "manageEntity": {
    "action": "Update",
    "entityId": "423602960",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierah25vgmlcge3l355727jk5djxk5kmyjsqi2cl5dujh6r7qloqprya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1609898206}]}}}",
    "nonce": "0x419c3fbdd75dce26776eb1185abf2e42c1688f1ae15df4223ad3a6fe1eb88f9b",
    "signature": "0x9420a85e848f438311124b4fe5476b1165a39c34fd6d049ae9b2c00fe5144f676db1da7d4a9d4b04298be52c8c5dd34c8859b88d349983c5b534f596ce8408411b",
    "signer": "0xc01BB3a3E7C64dB44052AcB9aedA3f7AcA268064",
    "userId": "423602960"
  }
}