{
  "manageEntity": {
    "action": "Update",
    "entityId": "58883767",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfc44c2d0bc819e4d2dc77aceb2bed8f1a0576db3a2708229cc6b386667fdd939",
    "signature": "0x2ec97c0c5c1421c90c9619d7cfa82e1da51dfd9aefca72bcdefff0edbf87bd507f722049bf0bd2faced95ee5bc354ebb980be7039270d7001bfa9828e4a0e72a1b",
    "signer": "0xc1498142DFa493b3D7160552B12AFAa00E3590F2",
    "userId": "58883767"
  }
}