{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397766",
    "entityType": "User",
    "nonce": "0xcafa1114396d907a42eb9db9d1c6527b62748fba6fd0964e41c47800eb657002",
    "signature": "0x0da1df3413993cf79c575d6aa2ed9808583e1c4ebfc6144d709b913ca5a8017a6545c7c4e42a0e75af437d92a195d18b793b54972555818ea6e6e27271f98ad41b",
    "signer": "0x86921d4751a5747c0793057F4d32DC03Fb961790",
    "userId": "785188686"
  }
}