{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0x2e5d16ba1be1d7fb5518ccc4149b20e81630892777099e2dde459027fad2cdf4",
    "signature": "0xe20722b3ec19e7af255e41d97da537842dc597993aa6dc6ad4b5a5bd718b83317d62f601854bbb75060c63e46f15304337c67a7f0916b85e8ef21a3a922e88f21c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}