{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914786391",
    "entityType": "User",
    "nonce": "0x0f40b20412998cdcf926dc6c5eac3b821c964ce08f5012303731d09cd551e0dc",
    "signature": "0xfd2aa4f68cc21653d12d45747578a7f175745d5007b9bc3a2fbc80d26c0303b15bea8a9482b535e6d54acf4f04b48915c331a5008f9eb9309ec02083f795ea601c",
    "signer": "0xDaB063e2eA8b5fE5C0Ed7223E3ae78f65634Bd2D",
    "userId": "280447001"
  }
}