{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "85481",
    "entityType": "User",
    "nonce": "0x41a2e77e1f0b3bb4f8d675f89a5936e37038502a7032189279de0e97530e8bae",
    "signature": "0xd3837ba75c757172886e2c23b9e24318857777eac77a5de2a11a3c7e70c16f0b24264f1e862a0e03bd850dbf1e9972dace3b518717da13e34c898d4861a501221b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}