{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ddf2e1533afc8f786fcb8310dc78bf876a683364a82dc52558281fe313a5f7b",
    "signature": "0x0feaabf966f789e59f2d7c7ff4c7e28219b27d386be570c51fd27066ba1dbf3026dbca41481db0f0e63fbd266e48e533fcd027821f30f15332ec0a3b5073f50b1b",
    "signer": "0x05dFbB4a0596bb4528E30DD78a528f34e09DcAc8",
    "userId": "403998674"
  }
}