{
  "manageEntity": {
    "action": "Update",
    "entityId": "557135181",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraym7rf2odf2enaa3o4ilenp5pvfozxpfijm6dtntjehdlx7g5kefq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":533815830}]}}}",
    "nonce": "0x3ed51a13d28e9b5762895afd0e5ef9ace7da07d5fa3db88cfcad65ae59d10deb",
    "signature": "0xb799bb4cda7fbeadc8eadaeb309a86e1d4dbd7be796d249a696dede03b1fa8c52f7a3edf70f83917a8d81db478ca689cf63082e3b41e2c45c83702e028bb816d1c",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}