{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x37f0286b05ab713c104589b7c34a6659ef97788bd91a414a7cf3c6e501136df4",
    "signature": "0x8c206d97c70b479a2c9505f1593ce04e362944eef07fd670adb7cb4001e86d4b7e9299bebe196ecdf6a6e8e7c276294859b921a0582fec21398025fa3a24b6e61c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}