{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842214964",
    "entityType": "User",
    "nonce": "0xa85de95a5d9be4d5eddc063c7cf6322f4bf6aad2eac93c60839fa8c7e9190bb5",
    "signature": "0xb4b8ffaca64afe160006eab79b87974c12d043c763bfa286879b36a59662f5fe2ecc2a3922db2011b31d46ac6ff65812eefb8e711946e25829d9a94a73a3b6bd1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}