{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2383cb0c352bdeca376f60795aea988ba202fbb31824d246f2d11562a87c44dd",
    "signature": "0xebc75fbb4defd9a2dbbc64ca02dd2ca7f41a8fa0d508b61881e3dc6d6925412d50339404410fca0abcc1f24dae644573317bdf046f2d0d807e2fcd50843c37bb1b",
    "signer": "0xBe18AC3d342FECf3B94A0d895aC912A6617c5209",
    "userId": "336558386"
  }
}