{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0xc91d04f61c4b215d766d61fbd90e4e0f9aa3770a78ef21ee8fc77806c79d765e",
    "signature": "0xe82cd71fee02c19843b9d2d92a1aeafed0efeb8f3ca3b6d9240c1e3edad674a616aaa9b20f842bc0122def639249b55aff9f4414a0c0c78af2362f0a33973a921c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}