{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322731495",
    "entityType": "User",
    "nonce": "0x44aef331d95917934148f4e0b35e727ca49ab6ebe58dedea9699960e5c26767a",
    "signature": "0x4cae805d4823f10bd6ab8ac4d55e25eb31aa41a422599577b60fd5f3a9e981b62e5bec1b22595d2313b020ab6c304b4b7f3cb40740eb4ffb8ace1ce89cafcd741b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}