{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188206",
    "entityType": "User",
    "nonce": "0x4e38a53342958536cb6f0316ff37f8c3a2fbdd0e9d7c4b5f00e755bb17c175c8",
    "signature": "0x4be55fd5f8ef79a83c1b78f688f6554006679783477bc1f29267b02e79fc8e430a668ffac1e50c96a4583f947f37d5f637bff8a1dc499f0be222c57158924d321b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}