{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc04d778c860ba2adcf5c8d6d7d9dbf425b51d079cdd88491ceee90d0741a8892",
    "signature": "0x24c5edb2262a007bb054097fe5e1dde58862c56cd786341413d594e519c1321836c06c5fd2e57233a81f22637667e069a267cf01c2655b3d162365b0d4058d591c",
    "signer": "0x0196a9F6F1037D4FF7Cd31af335a3B4963e7aA4E",
    "userId": "101943495"
  }
}