{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28646",
    "entityType": "User",
    "nonce": "0x2cd2dbd0fab2f1513b31edb0ae1094220f3edcf0937053637e2c0b34ec2c7f12",
    "signature": "0x457c7835a43fed8f99da1ba0bbf55ad425854c3429f07aca8cc5ea7bf53cceb44dfe1c58b3dd20fedc17111ca7675fc503333e2e49347221a18d25f3787bdf751b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}