{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x1d8f510fcb8423fdb58876cd145baaf15a7e7dcbdd804b55f12276f6a80301d5",
    "signature": "0x17ce3b442f0a05f60b7d4e1e89ff1480b759be30fb79764558c58bc5c516db586c61839d69eb24dd4676f9a91e2c95abb222b9fca05b26e2e5a05ea8ab381e141c",
    "signer": "0x4771D256e7217EB6B247e8cBaFbbCb199424a6b2",
    "userId": "836389559"
  }
}