{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2398ebe19e97cfa3751e02cb83af1b4b1ea3bedb09101466cc4c0b174b2d0cd8",
    "signature": "0xd9fb5ce6a366707d0d68d971bb9f721085cb6cb28c966d812b01249bb9645dff463dba86dcb2c470b4669ee5d21398e2908c96cbecb78d45e5a2eacb094917491c",
    "signer": "0xCDc6bb2FA1c24a93aCbB71C78AbE54Bda7327819",
    "userId": "964999596"
  }
}