{
  "manageEntity": {
    "action": "Update",
    "entityId": "788669747",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x08ac48dce8cfc4f33ef37b2f994176a99d307d7ca81df0fe2c41a2e3755b8c94",
    "signature": "0xc4be9959a1412a2f19e3ffbde2b459d201b10e03708a9d5a7f3b136b02f3bd3967ff36c3888871e4117d903d0ad25e09acb0edbee1503f2c9707e9121e688d7d1c",
    "signer": "0x77c311fFe4ddCfFEFc638434709Af9aD1cA69870",
    "userId": "788669747"
  }
}