{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0x1425690f67801fb4da0676e5d86b7952ffc9a7017e7c6c4e1bbcf8da345c71dc",
    "signature": "0x38efae1bb584f02d7d0afadb337fed901dd6b77ef2373cceb0be244db31c6986050e1642f84ee0c23ecd9c0051f64dddc22ffa1f27f8aad110aed65692f0d7531c",
    "signer": "0x3261185A1589a52E04a8D8aaeA571AF5cf240550",
    "userId": "124811119"
  }
}