{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341232766",
    "entityType": "User",
    "nonce": "0x51961c97a7666f485dd1de205ef5eff69633f9e212e5bf9a2ed33fcf0049b3a6",
    "signature": "0xb630db5ec4f6661195d67ce9084b88b14ebf50d11070e524f6c96bcaff1644f216c976a5ff9d951a34fdca1e75ce44816551cf09656b35b720a62f0c8731f9c41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}