{
  "manageEntity": {
    "action": "Update",
    "entityId": "132888617",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0b35bb14f2a550ce14c8ad7b9cb587d84533ffc1189b8386bd129ec43baf8da7",
    "signature": "0xa4fde13791a142465ba9ef0f1b33243d4b48e1ac42c53db18f51d7cc4b26e4ff7bc05294696d5ade2a42f285e1f303a3bf3ab21abb2745c112e9cc131ad007ff1b",
    "signer": "0xaa9c57886E50E1C31c9e252d3e949e455fB6a653",
    "userId": "132888617"
  }
}