{
  "manageEntity": {
    "action": "Update",
    "entityId": "641237722",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf891d1e2de4507b85c7455fe94723ee04132ec6ece10118813a92c3ac1bf8671",
    "signature": "0xddb81da4b06409bc48ee720bc8999362a2bf974bef3d453594b3e1e44faae3896e6fd6ffd3e1327469c8021bb6ef911e0342a64398a6a5d7557645bf54b2c2091b",
    "signer": "0x7aCAd8ae8aB7d3c6E4d0E4b004769e352C567dd9",
    "userId": "641237722"
  }
}