{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212541",
    "entityType": "User",
    "nonce": "0xb07a0be2e57a6051ee131d5f72ff63be4342a0a3bdac2e0f5ba13d64d2cfdfaa",
    "signature": "0x872603b2d62aa8162f3e30efe8f9485788476160adb765461a6f755d2226c81311116ffca3b011ed68e3e2264d3c16c5aca60ad6bc7497a088e1d488971c66111b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}