{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54547",
    "entityType": "User",
    "nonce": "0x3bd98f9636ab78705381ff374835aa9b05ec481a5971ba33f02b7c6e0207fc6e",
    "signature": "0xeb5b0577ce05205d01236b92e40765599cc44bd00e588dc67e342010739445cc33fae64aaad59b828b81af9eb136ce1fb24b2df93e0a3b10e2846857cfae56ea1b",
    "signer": "0x8D3Cabb7A85dCf573e6112D7FAf1dfD727a2Fe81",
    "userId": "878616439"
  }
}