{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89360309ecadb879ca43c151b1efbf288249b65c8b4882e74abc95cd3b70bb8d",
    "signature": "0x2d0e37a0495754693d4287dd987fa60bd981ef90d79059c78937e500aca50f91100b567bde114cd8e3252f324fd1b0977d1c797b81fc506008d14511947a7f081c",
    "signer": "0xE7aEb0446F689b1C66EDB46AbB9909cC34FD5A62",
    "userId": "939691466"
  }
}