{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33cd04173aa6cec925831e49cbbde9c39c238b3c7f7dade28b61aef31ea51a6e",
    "signature": "0xf1c5dc123496116f5c921e6d7d084cc6ddc15706bffd409e7ef51a1218d195f16e35be035312460933a0871ab745ee496333ffbb8d5bf070d635e2b67a0390591c",
    "signer": "0xF46d404cEDc9A5cc77B9Bc3303877b1BC6CAF166",
    "userId": "347680049"
  }
}