{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341216",
    "entityType": "User",
    "nonce": "0xdcccfa249526ef3c44fac84b11eea479f50a3773ea8e7ccd8f59b8101cb9623b",
    "signature": "0x1a1a9b0ac29fa16004855d2a4aef14527a60578fdaaac9b63c34a5caa85ed30d5639d2faff0d6633deec389d01d91ee572c47930394ec273009d18b68781f9631c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}