{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xc47a7a72294c1d8c333300f0b740a06c92f069108460491e05c6891a998bea36",
    "signature": "0x5184c4740d91cc4d89d638691e5f5bfcb7eeb417ed9ecad3c752c8ceaabdd5ec5cf349c4d7487c42b418d7f9768edfacff7dae6efcc1f38149dc72e3928e989c1c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}