{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121885",
    "entityType": "User",
    "nonce": "0xdcea3514db14620d25b483586fad7a8f71d100b03d1b52b40d19d1795cb2c68a",
    "signature": "0xa1cddf9353fd914d2c61ae353e1c385b10916fc951f9e66eac7c60e0b1fc6f970df4a6b17aeb13722ea53e491ee71ab722162ec9d72b607942fff5bfafbb38a81c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}