{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x38d7cf3195cd508ef6d7f8bc2fd35d3a3f190fb69dcfb508ad312e562499ddfb",
    "signature": "0x094a07e604db9e1eab0a8687529b823e22e4b45387c6912012a04126b40b66286afd61a0c505a4e1f73b5a2dbb3a72f1cb1c2cac52f66676012faa7c3c7bd4c81b",
    "signer": "0x634D4Be53B51c02129D81d3eD1503dF3F61E3D64",
    "userId": "84857498"
  }
}