{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0xb71965c145e3026b272851b67de9f50bccb94bb59bafe02075204e1c629821c4",
    "signature": "0x8d4162826a935d7ce917a95ba6098e3a60f2b427603df424a3ec2769c019303737bf04c31350c1bea2a123a64ca90a2f471b10d44ac87a41a22fb958b211a84a1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}