{
  "manageEntity": {
    "action": "Update",
    "entityId": "893310146",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1699b09fe2a92ad9aeb3c53d5f51abc97fe07b596a608b517f894fbd35a95659",
    "signature": "0x5287c243e492a8d014939a549f56932a7544cb6026bba5afa0634399e3f15daf17e41e7082db0caa378970aa8d53ce1afaca5ae995a407a3dc8273a503e573b11b",
    "signer": "0xc9dC0890a868C421E2eD48aDD2fABD63c8B71B9f",
    "userId": "893310146"
  }
}