{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "805604425",
    "entityType": "User",
    "nonce": "0x5d05825ee8b37af36fec46c17e852531d8a5ad6fc053f5a431123c5b93bf38ad",
    "signature": "0x3b9c1f0034e297a31627cfc712e4550121a53b553325af91f93a6ef421aa50d645a7a5978e653ec0afce2905a1c493a2ab5d4ab4c8b834789bbafeb2b8991f8d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}