{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212036",
    "entityType": "User",
    "nonce": "0xf2955e3f80509c184a5d1c04791f248e8688821ee3f46759906074086d36b615",
    "signature": "0xe40c0400fa23d3c36740f397391d4d152d77285826a7a8864024c8a0068891825c833afb296a595e42544abcb327300877f70b89b7a637e681796cfec2b13d7a1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}