{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x073a8e95f9722ed5efc5c1d649f8892f5db4ab496d1870f3238e4df42595d325",
    "signature": "0x6e0bc2db6fbca1dc8b5cdaf224af5b6ecedb5c074f80ec52ce60b87402a6b1140e27793e9140fa21ffb8c6ad2e575208bbb1ec5bca054962d69543b506dcc51d1b",
    "signer": "0x616195028622724a42023c50fEa64427a7088075",
    "userId": "995533075"
  }
}