{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfd7c133dd18b1a77a8c58ec1e6fbb13012200ddeb09a75244dde55a9d7b145ad",
    "signature": "0x802cf7ee1f8e109f8a39197632caa5385466417d1209fe9256e02b664fe1e39e45735bf162b3df9bf164d8af816684ca267d408f455ba27f0ae1c00bc3844b361c",
    "signer": "0x253047c0af4Fc72D6658Bc16df0b3FE0dB459513",
    "userId": "186198383"
  }
}