{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208722146",
    "entityType": "User",
    "nonce": "0x40fe298651de6d0800af9777bdcb351bfd7b211b0470b8a628d5473dacee89d6",
    "signature": "0x0ddb52fe3a3b514a116bf5be307402336d85c17aa9e9dc90d9dbb84ac1f3663c60d8884b8ad390a134967cf29c384547b21d06e69e422b1688d066827eaa7c311c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}