{
  "manageEntity": {
    "action": "Update",
    "entityId": "137744695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3st3w5ptbktfwndqhcdmk26xlozoa6wvywllhpbdehhzax5z3kaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1356007076},{\"type\":\"playlist\",\"playlist_id\":712092038},{\"type\":\"playlist\",\"playlist_id\":1975221590},{\"type\":\"playlist\",\"playlist_id\":948487497}]}}}",
    "nonce": "0x351de65e5cec8505456343bf233662bd37f0d15f85d2e993558dbd29c2a05902",
    "signature": "0x55ad5984a2a47033aae1f654601451b84c49e85e826dbe5022ab8ca17029d5e833f532cc6dc8aeabeb123fc25235605905a6e11ae04c60ba22f4312530415f971b",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}