{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195285",
    "entityType": "User",
    "nonce": "0x1978ae914f13e469fa3ab4ae9e37082f5d4030e2d9739e9ae53e31b2c7cf4c12",
    "signature": "0x32ed7df493ccc8a2ae49bbc2738b073e4fcf0d501d2ee8de7eed82bd649c31cb288d31ad85079cb1ddcf23f3feacce7e136d73e6c3e9bd7b11a18924cafc5c581b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}