{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x963a4c626d5d26d81d0c4bdbb0466975cff34ddfe5040b96f432d09604460ee4",
    "signature": "0x7b26197d6ec020fe1d644343c7b25505eb8dfbd2aab18ce155c5d0d5504509c03cefc0235ba2c3885fe4bcde09f5669566edbf2991fda279c5a69c52def57d261b",
    "signer": "0x1d213Bf7d1685E6C9e8589d81f7Fe642877f8EA4",
    "userId": "707945177"
  }
}