{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228434",
    "entityType": "User",
    "nonce": "0xc23971bbf6328285aa550db937629965324dd05f365e1ea6c1b222d2b5d2f9db",
    "signature": "0x6894480d169ddfc6bfa0dab1523bf327c168fbaf82fe1ef76a0d42cc2b80d6ec5c45dfc32e5f2334bf64fb6c27eaea027e2a74b61a68dff483d29ec12f999a8d1b",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}