{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711284",
    "entityType": "User",
    "nonce": "0x4d232effe067648325b2d3fc5ddf1a874c13626ced471b5972f7a12644cbe5ef",
    "signature": "0x535a3366589d525a11125856035a375d133ce577f8173bcda20cab1d1c4825535e8a95f020132e74c330341bbe1e9ffa51eb766dd8620be09c1e89ab231dbe8b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}