{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450156790",
    "entityType": "User",
    "nonce": "0xa5f07444aad3c2a194c2489c50ae5e5d89586fe3dc46df851f98bef5d58079c1",
    "signature": "0xe412620620df2af50b55263893b4600c2bc8b11cb62663ddce439503afaa7c3705942120918e53ab15b4cdd86abbd74f1ac8ff7dea55c52d1e6bcaa9610797511c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}