{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58a64613623626e44c041e1b0a4506a392176dab46643ed10668bda09cf839db",
    "signature": "0xe192b60a56fdf48547340176053d254af6d5aafc9196d7ad64688c604711c0fa564bae3872800acc1bfa76d707f84526c81c259751827f7973cc5531bde1cf571b",
    "signer": "0x8C7bee798c0AB93Df67Cd00879d67b02274644CF",
    "userId": "855403"
  }
}