{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1283805",
    "entityType": "User",
    "nonce": "0xa1b740dad37622699a40d5e125de714a0f75f71283b8496dc92cf003e3eebb97",
    "signature": "0xccf850b7b4f9ffd685615618934b3fcf910d7c15cc4ac59474d0b5b4b5978d4808e03c127bd0a791550a0be00febd119ceb3b1793ac47f70b04e0d4daf494a911c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}