{
  "manageEntity": {
    "action": "Update",
    "entityId": "132413541",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f0e470f480c34a192aa9444a08f97923d4ed76019aa2f611f78c7148f09348a",
    "signature": "0x57fe7b509c5c96577037b5abf863e4e131f99bfb19067acc4f6e49244fc5cd6110b2c5d801f159411cbd872ded3032f3102510fa8fe093526154fa3c87acf6241b",
    "signer": "0x18d84Fc2cFea86BfDBb62E7d4e8ddA19dE31d504",
    "userId": "132413541"
  }
}