{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x858bc83e9daa0e3283d58e81bc6c022ba87ab67fd1f2bf4eda2c7ca8b3045384",
    "signature": "0xf1d92e1fc1d9b429b40efee5816edfa368947e18fdcc6dcb68f71667b7733ba84c3eb68fa171de96dacb39b991ed16195f88baf10b72f6350bb1c7d0cb90ed021b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}