{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37362455",
    "entityType": "User",
    "nonce": "0x87b6e6e3f21b07907c6352daa070d899cb8e83f85c1208e046b266d58cc79e2e",
    "signature": "0xcc09177248e5fb6bb40d501e7b56178ad5ff09dd69974727b067db21f1cc996c7aad8d6bd7b2ac3cdc956ffeeff9f3feaf09ce3c563012a918d177e8b08633451b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}