{
  "manageEntity": {
    "action": "Update",
    "entityId": "951908954",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa3fb5cc91ffb41897371b4e763c03b2d1557d7b4456ca5ba4a296c8931ccd50",
    "signature": "0x8eb5ac32e78ad3164d59d7bda853c722df384cf867940dd1880c2883ac002b953df5184b020dda9c4db2249bae2eaf050efac97213116db07ab8e2a9a4f400591c",
    "signer": "0xEFbdED17B2c3201ad341604DFa0b6174C562Cb05",
    "userId": "951908954"
  }
}