{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152452",
    "entityType": "User",
    "nonce": "0x5bdf981bf4cef5396d789b836ba56cd2e9ca0a5600130ddc07ebfbc31f1dc305",
    "signature": "0xf73639e601c37805fc3142a1670db2d95ea07c45b6d151079fe02ac0a10b01cb702938267d0669114f9d1606063fce4f14c91702706412ed42858f55612960b51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}