{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0xeacbbb0ec9fd7a31de9580881d96618e32bd0ec084327fe43e9be30941542574",
    "signature": "0x79b01a4fd5d6b966da2183bb609cf72226c1826cf06c3bb3426d4f05074c7ef00f5d807998988a568433ee6b71de748ece642d34064c94e5fbd881d7ede86adf1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}