{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x139a15fd6b648d0165bd0de7ea63edfa66d413f8fbaa119be4558e96e86ffad6",
    "signature": "0x1085457d5e8e5d25cd11ae3c5f64033c91eb56ea5074e02468a6601618dc12c04df4e266f9a781f2d3b5aa55a9d0d10260382ae3d451d578b59494e74e453b661b",
    "signer": "0x7eF743e051bA3fCD83e2139d39e43EEa73D8aCB0",
    "userId": "998482186"
  }
}