{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x10f7a5a2b40f6f977b392feb8f988174d48aff408286dce9d708b7a42cf6161a",
    "signature": "0x4bd7809ec62a79a9eded8f6a5eadf4cf6454509e6fe40a8e8d278290f3cdaa4521d546ae0bdd6750ce29f2bdaba3ecffab2eba999f4e54b57a888c55839838821c",
    "signer": "0x3cea819853Bf20Cdd8f10b27ed0911741D96289c",
    "userId": "843354686"
  }
}