{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170439298",
    "entityType": "User",
    "nonce": "0x8ec19aa0f4a692c5e096029f01b2e3878f5f26558eff4978d16e701761d297ca",
    "signature": "0xc115c7b0b07e26a76b6de9fa393b10f996681d4fc5eb5e3c099273672d295b112c06024e9b561f43a365e907817b5923e714a5f83c05fe7431ef191a9a7935cf1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}