{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x63093a088ac6c98b87db99d1fa898a99603cec1dcfd194933e4430d7535b3dcc",
    "signature": "0x19d35c84e92793351903d51aa71ec14d2305079130329f9072a3b9ea11f0f66b750a069a9d0f71ea01404199a0edc9dbed55ae52e4b7607ba9416cbad99808291b",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}