{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44544",
    "entityType": "User",
    "nonce": "0xe432cc9947d0a6791f99930e443ffcf184a7aaa4b76746f4377f604b6d05ff6b",
    "signature": "0x480c25e6e042c38afce24bc988d989fa011d3497fab5e60029af31ee74badb1078d095dcb5de93df031ff3940ab914bfc97f31d6c0a4bb52c39c537859ab83131b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}