{
  "manageEntity": {
    "action": "Update",
    "entityId": "284806499",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfc2672460c3d4249f111b6e2c194870842b3ad8afca13f3c80900122bd2eaae3",
    "signature": "0x9350037ce161863325d6c257a258f208e2254b612e63da3aa4e5bcabc2e9fa6204a36be1487df94ba9448bbcb1dafae92df57b7ff94a49877a4dd47ae8c2fb4b1b",
    "signer": "0x8c1bA164AE1BbD7CDae677bCb1F6C4ccbB736e22",
    "userId": "284806499"
  }
}