{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50130",
    "entityType": "User",
    "nonce": "0xb1af0371b3976b4f69b4c8fe6afc4c06121d0f29ddf35161b44d2e65cafe9c09",
    "signature": "0x3922f7d5362ef3d700d3ced068fe253582b3af7bf11029a6344c388589a39a360364aa696484a7ba4c3281502d57ab54f9f1a8a05bae134691614de19d1ce8cd1b",
    "signer": "0xb8909c41963586dbBe3EbbAB4FC8F1f8E6970Ce2",
    "userId": "435332232"
  }
}