{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "244519",
    "entityType": "User",
    "nonce": "0xd7facf219b88ab5973cb080d1e4559fee57a73576f59b385f9485418fc5b741b",
    "signature": "0x0ff854e5207c6bed599a83bdf140f3fb92640b5ae9a6bbeb9ee33db2107e68a26ce8e887acb33cb1178c639583576e2cd9e133fcd2402004beaece27f680e1971c",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}