{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166509847",
    "entityType": "User",
    "nonce": "0xa81e14c62e18004292dad5029ffb9fb51a88dd998272e2b286f7a85414d63fc4",
    "signature": "0xe2fa49eb13fec7cf9f30883c6249a02fc5d6d32d04f495c63f637cf3183aabca352dd99099bcbb404d75b489ecf21624ae8dd14a780474d17ae0fbd7ad7de12a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}