{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51601",
    "entityType": "User",
    "nonce": "0xbfa5a8ed3f4b0ac1553a10cf1f7c5607eb89adc43e8da253f5521cc9f289e869",
    "signature": "0x7ead90447d536db5e9d1effee62b10755ebb3604a006e920019b22547edbba23639e74b3cc3fe66f3a5b809e1f7d0abd0351c5dff6c41fe2b9d4723cf1dd74b11c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}