{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "820616115",
    "entityType": "User",
    "nonce": "0xbd9576cfd302fea5f235c1742b832f8bfa0d3a90e35c3053328736be7cad8698",
    "signature": "0x730d0e79b4c52e07d3d2a4705e824dd90e230cdb20b1d1c6f02130f46048100c34e57a208239aa60089d2ef785a850a00bec9c8ed176e84a3e546fc4abe8a7791b",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}