{
  "manageEntity": {
    "action": "Update",
    "entityId": "581003495",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4e198a99709c13a7d12c903bcdda9ff12665186f582657f872a8adc0ebe968e9",
    "signature": "0x5ecc8ad13f90480c37f6e30267c2772018b8d916e6aa47f8889380ad6e0f27e50b3eb59dc4c40dfa447f8c3876ea5872e2639a873d4be38f26aeb1a07cbb60481b",
    "signer": "0xF59599790AcF42c0FE746F5DDa3A9cc2AB86327a",
    "userId": "581003495"
  }
}