{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16251128",
    "entityType": "User",
    "nonce": "0x3942b087fd20493825eab8c6b0d54974daa9c70bcea39b362d375f3361914515",
    "signature": "0x83c20a0462637a0fc6877505c845a1998472817c80883569174cdf8193be79c213c5fdd5b4c1bdefcceb32242a47ad926f960c532e8ef40bc98b0f923c5c116b1b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}