{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd0433c3587e82d23d3b6259dc13e14d114c2fc0b912bd86aa847ebbba30b71d3",
    "signature": "0x133ce733fd80397eac3180eb2bb02b205a33b51bb37fbba0a34caed60d45d40e2a185b11b50ac43733cc06c538bf1878e0fb1eb13af8bf7a4d1139e34321346d1c",
    "signer": "0x498D7FA7326853fE1Fee3e229D38A97f4243Cd58",
    "userId": "281300041"
  }
}