{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81539",
    "entityType": "User",
    "nonce": "0xa43f0ac8b6cc2e225859d62ba56bca3eb37327b25b920af664393c3808728d45",
    "signature": "0x457a412873a49dc28cb6a0e550a08ab38e23f4abb02bc81b1c45cab6a629785d406d0eb2052b0a1b5c423b7e3892b15108cc4a8c46314167e7a021d2d8480cd41c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}