{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0x76faed6466071233175e6fc5c05ea901208aed017047ccfe58d29a384bbba533",
    "signature": "0x198925de4878878a48cb7eb5448f5ae2f9106f4d3dfbecf6fb2c1b71f1eb712a2f556367a83b54646c5d1403dbe9093d2a29fc162251b639da174238cc39d9da1b",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}