{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51842",
    "entityType": "User",
    "nonce": "0x0ed8a81461b816abbe8bd50696e9facde1265ef9267cfc1f6624de061ff0789f",
    "signature": "0x2511894ddd7bb848a5de8f30340ea7bc0a0f365808635fdee311f2ee9cfcd5c34d8c18fc0256d527ec6d8f0d4af64170700a3d8f7f88ff2fb2f1d58bb05315761b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}