{
  "manageEntity": {
    "action": "Update",
    "entityId": "114949737",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1de7a0802d6f2e568f4dcbe0a096680133e0fc8c5d5e027cac6b0560d4463db",
    "signature": "0xc82ea01672ddfedc19e34feaea939939ef4eb984f7ff5316937fd0f7a00e488416b9413b1b6b4c6257e7979f263990aa9a1aa4af961f103f98152091947326751b",
    "signer": "0x8FFA2d9671e962b5161601870ED02b2B5C779DF2",
    "userId": "114949737"
  }
}