{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6c01d2a0902014fc44e98639909f062c1c2d323e1aabfafff4f3524e254f6eb9",
    "signature": "0x950bafa7a01b79ee5f8b76460a2af7249850763f19ae8c2ea0b5560c5ed0a9c75fa7bc79b0dad052360459f2e4d9ee8e0e677ad59a193cfad7eb0fd264fc0cf71b",
    "signer": "0x1CF1F07ECEB2f13D54412EDc889E296e81689c8C",
    "userId": "894558437"
  }
}