{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xa693c260befd2264fc4c17e0b93894a9a982604886215c2f3166e56ed5aca77a",
    "signature": "0xfd8a9d675fb5dad26da48b18352be1f311265ff9f30f9696d2b235fdf1f7356005bc43be506fafe60181ed293f4a7dc73f9e56415525a0870b4768e03a8bbb0e1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}