{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2e4eda37bacea160182c7093d3bde0e7a8c3fb75dff4db13e01b1b75cbe5d03a",
    "signature": "0xe08b11fbcb6611b7588b0e21b293e3fb443a9aa5d545031fa3efd6c8438aef860d1a35989da4e1dca67e8169cec85b91e83dea6a87f4b103cda4a30d0f0c27871c",
    "signer": "0xa8472e7A84888420F60141d2c087f40df4228C81",
    "userId": "217543046"
  }
}