{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0xd021f9c51d8c382cc8639080e10a539c54c79221b87a6e9397ccc39a9b6c8aad",
    "signature": "0x391d5babb42a1df1c6e637f5721d641f54edf1dc0ce2b580a20b99fe67bbc3940929f770bd56802cfd1b759eb39d0e2c0ac6c5f8fb5034c162293a8ccfbe59081b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}