{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ed45ee6e528c3110f54faec7357143dd4e21b831309c9c51ac90e6f4066c24f",
    "signature": "0xae2b452a6c0eeca938049ce7861a46136aea49a25147b41cb7913e5d15986b604c85ddfa4028cad9daaf618808dc5c802384f2d6f11f2965896b9c64a35364d51c",
    "signer": "0x91C1f0a26f0b26BE4EABeb19E371752f000924a4",
    "userId": "495925470"
  }
}