{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333763354",
    "entityType": "User",
    "nonce": "0xc7777f376d5ea1e1fbc1e9cf1fcf9c8595e47871e6d2bd8c415994bf348b9be8",
    "signature": "0xf6a77e5c307bdfd76be94388f269f98957e8d3b9b4f2d2cc31231bee7e2b02cc4d8c17198f8a7d94e7d712f7fc289e8ee3ada06d60cf8d9ab0990ad0a8017d8e1c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}