{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137791",
    "entityType": "User",
    "nonce": "0x3176ae1e4fa01ee8ada16beb4ae6553f23ab0de4bf7c83996a372050c3a79a3e",
    "signature": "0x2842a2d3edcc234b4453ef0c135ff799b4c5e4a8ae116748ab1b33404e26f8f54e8e10716e7f11849f8f761c69202e7fa188a7447e1cb49ee25036a3a07c2ac61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}