{
  "manageEntity": {
    "action": "Update",
    "entityId": "301183414",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd20d7c007bb552e2bb1b4eb73ac18bd0cd06f6ff11fbfcf78f88f1888fa175ef",
    "signature": "0xe287e8f8e19b10e3a6cabfff9b5837ff7c24b73d04430d8927c886059a8575817d05793ffce09cde7ce90b4ffa33d8b2500460879b72c812e51d9d8f809196091b",
    "signer": "0x80A62815c36326032EF08Fc00BD673701300bfaf",
    "userId": "301183414"
  }
}