{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "178252",
    "entityType": "User",
    "nonce": "0x6c78ae9d8b2d746b68e8d4a7c6acac43f6372cf29524c1776d60e93343322695",
    "signature": "0xf8ef15281674cec01b391a65a3716e2db350ff845233bc44921502f9fa976953549125316c49af822a8a0e4c2db43590daf210363a83dd816a90b0ae17ed0b401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}