{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xb7073e48aa029cca51fe5c55e3e9f5497d12d01578c77a71b3a831e27f646a0b",
    "signature": "0xbfd46f9b1e80312a94b5d8f1998c3683cc86b3a21c40087f56a7736c3e35e4a633c5b16be458925966e17b83c46f91d5924668c04b2fef7a9656e315849676ab1c",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}