{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1987ffc47e6b6a34efd68b9dc364d8c263fee5aa3abd93207324516b2cf6ad2a",
    "signature": "0xd51f477305d86dd832fcaf4f8bb558c6ceb0c5a22ae78877cde51e4059e008617e0fe1b5f4fcdd3d5ef4bfed3216f27543caa507143505581b262762af9cc33a1c",
    "signer": "0xf20d1BDB5181d5b5Af341b24cd0CA18Cd5D3f264",
    "userId": "69147530"
  }
}