{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123674",
    "entityType": "User",
    "nonce": "0x9dcf20bfa9f92b1e7204e04c8744768628b5f770305028b1c77a4b4b4ec00065",
    "signature": "0xe04979eca2a2f19ff59caf19b028e11a17d67c4aabbd0f916bc8ef8db381011d03308a5ea6b178b732dfba6486eb4e97f20eada3e381f3a3532d0dfb977251291b",
    "signer": "0x227c6D4cdFc19155a5212Bc082E6079835436E1e",
    "userId": "94961"
  }
}