{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe57e0a35873ed504d6bc0eed0d2b1fc176b58b0a0b549ff5edeb4e777ecd52da",
    "signature": "0x9f773c3de04a5f7db24fd5fb46b534b799e3dc5da775652c7304e5f3ed5241661e4556f741ff59c8c4e8b3d08ff6bab243b8553746315b9ff957e894b75e1b0a1c",
    "signer": "0xAa843a988097Ca91ae47072E821FCB0562955Ba7",
    "userId": "125048639"
  }
}