{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193833",
    "entityType": "User",
    "nonce": "0xad7b8172b12ecb1a62f7fa99a4993342ed22648ed39f7f40bf08b3641b905bcb",
    "signature": "0xc2cd01849460cbe29df369464c8dcbe88bdd243007b9da5022d5a8ac63445e3a7253a70ddff81148fff51dfba2f4e71679069164bb1419e6c986e6c131181df91c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}