{
  "manageEntity": {
    "action": "Update",
    "entityId": "940324091",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb0c55f82cb2add03ce2c69a2b2825bd06890ff816c82f6e61bf11f90838aa7f8",
    "signature": "0x72898aff25a5be0c686ff51ab959428f9240dd58270ad1cc93dbcbcd83daff1613df1620066087a75291ff658315ac07421cb1dcf32789ebcff3fb0c95043a371c",
    "signer": "0x19FE1be4589c266Ba0313d5eB55b42fdc56cF8Ce",
    "userId": "940324091"
  }
}