{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "579575816",
    "entityType": "User",
    "nonce": "0xb0e9334477f0c73446c55508d4fe8162fdc3e36ba53678eafef10b404ca41dd1",
    "signature": "0x88a9757d8354d3a9c155d854978ab2cf1ce0a4d9f24ff83771483a55bc8673082c21fbc4ea19104033510b847be200c352af22dd21bfc26ef6ab9aa5628b380c1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}