{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234326",
    "entityType": "User",
    "nonce": "0xc867a492c0188fac54a616af390b4c6e3175eff87ff619c6634fa4fe46b8350f",
    "signature": "0x5770d7b8c8ba710880b25359fbe4a3ac74da15c1f9f982e51114f0a6da46474d62429e95e6f99e454e8654acc896a426ba94317dff672c053a43479f0b47b2341c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}