{
  "manageEntity": {
    "action": "Update",
    "entityId": "631423161",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x34f89448e0d698722067fd3bc4b41f9c3b4215941a68a8db62e78ddfcd1aac89",
    "signature": "0x4d77b4c34d6a000b7eefae81fe6dc3d1a90b0efe4c8a0087df9ee4b85c28a8347e7cd4b2293ca4fac2c721765e7d41f33ca696f51fb3dd41d2b39583270f07c41c",
    "signer": "0x3bAeF837369bF35C2ED81037444d982a8045bccd",
    "userId": "631423161"
  }
}