{
  "manageEntity": {
    "action": "Update",
    "entityId": "335728244",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2a55b36d1de684d2784a4ea2f33fa0a4e35bc10d2114ca8ad866961736aba24e",
    "signature": "0x12e99337dd9661fd0034df6303f997dc548cfe7c8a47b5ca1cf4d5d3e9ea72174764e29adea2b2c49c3c594df645abaedfd16ac489f96385e0523efb475d65281b",
    "signer": "0x053464CE555041482a39d0791A1F93bff74EC0EE",
    "userId": "335728244"
  }
}