{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x379a60b26244723c4a085caf9172617819606bb123401ead8d1fbc3d561c1d0a",
    "signature": "0x34aee1e2479c5b088aab9921a93c8efd6adc50031375add84b54c631cc1c976a009ec04d99b3c355844cd78d89c5e727021252f63da341e3d5c79dee381cb9bd1c",
    "signer": "0x1D3d239be37Fa85034c49533e3c169e998587a39",
    "userId": "450086183"
  }
}