{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0xb59a0babab98308500ea1b3dd2e1c4e041cd252d5477de85eff034166c2566da",
    "signature": "0xc3150125d039a331f711abd312943393c5bdfa4b9d3ff8e1df744026fe8d190161dace996a2ccd57f8f09f7ab14bdb51f406b76897e1029bff70cc4fedd529d21b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}