{
  "manageEntity": {
    "action": "Update",
    "entityId": "504702805",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6aca384308ca3a8202b21e9872e417e91d44641ad736c5d994aefd0dc591dc24",
    "signature": "0x0e04cb58cfc15f15b2d52c148699c5e95154b43369dc1936aad59c87b43da67c360760526d23a7dfb1ca8503c89c99e3cb41516301b5163a644244baf5b325001c",
    "signer": "0xd6B54c8Ae60b61347E891451334679DD1B3E373e",
    "userId": "504702805"
  }
}