{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x67b08bc7f2a298e3d1d2f561008f04141b55b12b189e88e43c713dcdb89809a5",
    "signature": "0x03735f7317d777ca97accef7ffddf2f6e5dbef9e6c5abefec0aea37155cfd4d3694269d4f76d2b9e4aa5d096068690286ee95ddbcb153ef1f528dd3e898b53dc1b",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}