{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x83533a28a43293fcf96c6f4e390d6240aaa835408f9ab1850cfab36be90f382b",
    "signature": "0xf9666c19bd3fa500329d06d7bc6ca9e544af943a1b92bc4e976e02783168aa7909dc6566838d3b51bdff6e46d2c8be282fc90dff6e549d7a46c76513dc986f271c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}