{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "229916",
    "entityType": "User",
    "nonce": "0x3474f27e07e0b08c9e310302e6f4b473489187070a8b49a68843969a8fd0fa76",
    "signature": "0xcbb22d32527f993e72c188e19733495cce1657544d59231d8a7bdc941cad66682578e973be6da4b00a9c6e8bdb4627d011f2d39ccc428110ad982eb3ef6286621b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}