{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc729a257b0ab3a2dba7e44f56f7e931dca37bc8f9a1fb2c511572f9d1692dbea",
    "signature": "0x9ebfae0a7a38e254618db6404d51d2174a16f1683019581425a3612508fec92b24a758bf1e82c106010db92c18b528fa725683da80c788ca44710a60b813c9841c",
    "signer": "0x5CaC6A992c44d0E8eCF564AC4049b11c942EB158",
    "userId": "426885522"
  }
}