{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd3ab5db61efe1f91d5615a7cef64406f8a1dbbfcc8f762f8c44969a1349f4b3f",
    "signature": "0x27141300810fca804179a4a3480672040bc0013ea9cbc935ca74688a9644477379def2d3f2c8bdb5e2965e306f1a4d2e3f94ad324d64ca3d1d868792641679dc1c",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}