{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16683",
    "entityType": "User",
    "nonce": "0xbcbe94b25b5d50280c87204ff6971e936649563ea0b924e2f01144f4761b6986",
    "signature": "0xf52eebd298eea1612766716b9a6c55b73fc897d0d9e3dc03873ad927c103c9344d036195b92d7eeaeebe94d5f7d4e43d34a3f89e1cd4c29b777f510bd2aa84bd1b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}