{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776655850",
    "entityType": "User",
    "nonce": "0xa7f1ef9e231a214ddf7ad22b806d3d658b0d445c0365da69d1fe7f5021a3c813",
    "signature": "0x3f34cae51c82d31bfa7f73d474e6abe3f8f1a7bdc236bcd272ac8f15af9333f032ec71811503557955b202f3d2f60d1eb6dda580be1369de275161a8e13faa261c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}