{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40651",
    "entityType": "User",
    "nonce": "0xdef4fa7f10b7fabe67098f1479fd929f98d2f38515e7d4c3c10b827ad318f22e",
    "signature": "0xfdc640d58c0cb358eac042e5a3c48ada9237ede9244bc5e00bd8f39804f04ed96bb8e757c718d4f25d73940e52a6262b75b0791ba4754f3de3d9af006ba8b7cd1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}