{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c354abcfb74b0563281c914407c1e049c920e14fba1355b775f14a41e4ee03e",
    "signature": "0x6ec434cd43454c02f50c46b8c301edbcd410fe3776591003e5a2b0b39538b1aa28c7dfc505d62a1c741f0a0127ea1a538e6c06754f8447dda7b37584d9b14cc61c",
    "signer": "0x6E59a341dDb8D8F4899893d5bA1Db482168EB9ff",
    "userId": "849833124"
  }
}