{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311",
    "entityType": "User",
    "nonce": "0x80dbe62165a9e5fe45e8d3adeea2e8d58ebed1965b34b71db692c68b6e8b64fe",
    "signature": "0xf2764c3bea6da916cf84d694699cd0cfec51d1079e7377f927acab9ea8efbde02d393d5999df706b0e8dc2db3e50662dde1e06d350899816b525706fd9ace9d01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}