{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x7a9266a5e2a7576810877f3bd0e499dafa8d1e4a1c9538d977923b072e38d912",
    "signature": "0xfebc1b55a5b5c0e764dd253c5872214b3d5184cedff3b526d33e8d615f32fc070f48c770185494da0c3e10163a2e6e4bd20ac1b905d3f521a39e29638d56c68a1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}