{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a314d9af772ceeb037c4caa9a8560f8d42823d3ba6df6f6ea158ea4d7a4a62c",
    "signature": "0x9bfcdb9cce59f94c753103f62761c4495ecf6b9aa6e933c972989649e2e5b731637731f9a6252d939b88f0baae9867dabd4eac73ba005c6a27bc5c4348b476fe1b",
    "signer": "0xD458Cce3c2602e75182048352B283CaAf795CD22",
    "userId": "723855141"
  }
}