{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "717667158",
    "entityType": "User",
    "nonce": "0x77686d1bfd6662960f0871b986eb4d10269b1667a71b96c528b8503adf979d7e",
    "signature": "0x624ca0e4d28aa1cf4dc3b72e1b63df3d8a568e149c391136b2078e04720322be3f7626d0afcf9483e20b3e99307a1e3c44e68ac9bab8f1756fd55b16c5a5fdf31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}