{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf22cb81b5192c23da75a090cd37fe2d24e05e51d2a5449c0affd0b13ca3ff347",
    "signature": "0x58773b046b73d3954c87d6924171bd0c0e9831ebb646fd73138a953ce74a79295ccec79f8ddbc5403da3cdf1cdd3e94e5ef02185e321e6396b45bdfe3c886d9b1b",
    "signer": "0xfe69C2768E8613A513E75C17B1370d8489f9c1FB",
    "userId": "914719004"
  }
}