{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe63b65be56cf9be17d116ee46eeb6901753120a381baaf877922c88f87c6c8a7",
    "signature": "0x78ba253341713e259b205e072e2c6d4aa53d54848d4c861a82d113435ffe666252dfe6bcd3b63b1ed218cbc77ad45adfceaf0b932e0b4230e80f5e6792dc55391b",
    "signer": "0x7cd25FB30C9BeaF3A4ee8191d57bB6C598D317CD",
    "userId": "757352381"
  }
}