{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0xd6623834e40d96c8e4584a3b8f5acdad13d56e6934f536b0b577139aab9455a3",
    "signature": "0x7e391bb8b5f63d7c122f62e52fb747bed7d989c000ab9dd57356caa5d4fe712f287de9654063fa0caa9dadf16021924c18c8a4a92d291c94997aa02aa44991911b",
    "signer": "0x1265f0C62f63e733ef6f5A73800dAc6eb1dAA462",
    "userId": "551524903"
  }
}