{
  "manageEntity": {
    "action": "Update",
    "entityId": "830423041",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5698483096b9077c8f2eec436392abc6c98f867ab4bcb788db683a8fefc4b68d",
    "signature": "0x0a2cbb500ad62fda3c2f3a0b95bb380dbb1157cab05727be4ff3792b82ec87fc3be57cdefcc8ecc2b1cdde0e97981cea61697609044d8bebcd92c08eaadb26ca1b",
    "signer": "0x85fe520C572b5a325f70877387fDD616c9Fb8bA6",
    "userId": "830423041"
  }
}