{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x39601b1ea545019ee0831e404dad6210594a490f23dd7f4af497424522ca889c",
    "signature": "0x132b852b4fdb8412783ecb3ffd3c06e16d1dca75ccb5d0fdf7246481f46177184be473fe047765f32c904c12b8e79bbd590db4c244739e0710e1eae3fe528dd91b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}