{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174748",
    "entityType": "User",
    "nonce": "0x6edda5798904beeab40f38084786309dfd516811eb10c57b92589b4e3d8c2d7e",
    "signature": "0xaba86cf45cc14bec5a6c802fcf705e9dab5c26a5c95c6139b9b6677a468eb07f43a09ed08af2825b08aa39143250fb885102e9679a0cef0183144a38da02d3901c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}