{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0xd2efc6399df45ac1a2e8e958b0dc439c043cdd0fab8ac9306e17310f0c1f96e0",
    "signature": "0x91d7de172c1f6ef9f6a3a1e60b5369dd5334d24ff6a83366ccb21a3d71a0281512559cd74fa3b855140ebea81e8909b2a5937ec541c0f5b49d5ef060b5e04ae11b",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}