{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991751",
    "entityType": "User",
    "nonce": "0xadafbcbbc57dfaa111a5133706d919961a0cce8d669c3ddb03be51c9258b78c0",
    "signature": "0x8c4f136c9c1de84c7f635d942abcf51ef89566fe6e2cd7520b9aa5d2851e63c61db8e23fda900c2e070cf729ae55513561c0b88b1e5c8be72f3a9e5f7ba3a6911c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}