{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x6cb88bf0e4e48826db7157361a6f43ffbd6a0be6c3361e93be7c1b1a0fcb414c",
    "signature": "0x3170d3db3e23f004556e6b3c5146f5642b4bed4fdd1702e7b9b77e584f1deae247d082cfdca273591a23ff4d307098726b53a0a6ed94c736974e5df8a08c88e31b",
    "signer": "0x4c84Df6067D8340E2D5cBD3b122eC9995f52013C",
    "userId": "487670016"
  }
}