{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x122cf1543e2dcfd1bfb1dfd04084452c9d9210f4db611aed9705c2e739ed343d",
    "signature": "0xc170ec66e1930fabcdb1fabae4d81460c26c8461258257d616efbdab6df8f8c9406bdd687b9a1e22c93a5b7b84878542d831c8da62b03139930abd73bc4308811c",
    "signer": "0xea69253B2C33054a4FA2D56471c9ddB8E0584B10",
    "userId": "413014972"
  }
}