{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22215",
    "entityType": "User",
    "nonce": "0x2fe0c61ff1a0c9b96004a3c1c8241d16c20cdbef57aad22a5af98fbf80ae3361",
    "signature": "0x7e5864f8acc5a59622eca76516ee0bcf3b947c835130f5deee8eb19aef4cb0bd39b1e58bb8b742678271c459321b2dd6a2f55fcd16ea8fe03ecaa413b68de1011c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}