{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42216",
    "entityType": "User",
    "nonce": "0xe0d1bdeaabccda20ba4b0c7bde41f4b514d83bf0b9d1fa34867f5814840fbb2d",
    "signature": "0x8ff8d2e00aab3fea0627038b4ecd957905bbf8e32f8618befbc963a4e897467267fab02e25eeabcf77e988065b1fddd6814159af01cd2b79a4bfeee51bccb6881c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}