{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381118",
    "entityType": "User",
    "nonce": "0x1a94b8c9269941ef94ccccdf828dc6138cc8163b8abde942e3b1ea3a0ff92393",
    "signature": "0x25de5261347e202fc2489c78d37994ab3379d5ec03fd1eef195e3c812c5b8bbb4edca811e8d442ebebae4b4d48bcd6edae10a8910e4b90a5e7bf21137e99ad0a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}