{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1d0310a5554a2f021255588bc3abf512311ddd0887a41489a98ed5bfc11b4e1",
    "signature": "0xb4268c2f0a33ed10c49a288fca4952875f5ae4d65f5c1c398db93c24527f01d708eedb53a10a8af00b74266f35c48037cbb1d284da1103decd4f136f6dbbe96f1c",
    "signer": "0xFC0c92eF8cBf61d4fD5a1Cd56650c300c4F54aC6",
    "userId": "161476604"
  }
}