{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145147",
    "entityType": "User",
    "nonce": "0x303a9a03e8c991e23dcf18e2ee7e66ac4ca443873c55a4b0f58b052a840c135c",
    "signature": "0x4058cfddece7f28d66f495e1697db5e159eee9bb40609c894ca42f66f6d3951824a94f54a6a013558663ac73ab6b5f31cf787713b9c5db60be544092756060dc1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}