{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xd136c6cf30d0e658786c1c1c2d42df2cd5a31d05530c470a5e98531cbe20b6ec",
    "signature": "0xa4004a79c1a592d6c1e98816efac19e2bc44dcd3d0c0dc8adad4b37470e53d7d01c7e8aa79d1d4f74c0bdad1d56a79e52baed85576b958ed64b82e66e3db523c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}