{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704311956",
    "entityType": "User",
    "nonce": "0xbd839bc04797735111e31834169155e361780f6a38680fdb0933113669213387",
    "signature": "0xea39b6e3c3317c57bc13bfa3d6a62d63b46d3a9076dfe6a4cc360072b047b779058e3fa3507ccf69e78c5c0c2eea7921e4c7280573d32674a8ac0e52b29e939c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}