{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307933",
    "entityType": "User",
    "nonce": "0xa00d4a61f0876c74df49f0b10c59b85819a26c0651bfd0cfb3d1710a4899127f",
    "signature": "0x505a1e7092484499b16d6dd243647636ed2878da23bdf1b9caa7bf2c00a50fac54e6fd261d05c16965df2ebbd0a041e314d85903a84b26be851f71055d56aed91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}