{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0x2e72ec8c0830c0c8d49adc4c86601ead44ecd4da58e6a91f1bbc148f97a7eba1",
    "signature": "0x86a05c37789e1771835d373988c04fa5dc07e0d3fd4b9ed36edd210b6645d9677ed7189499ccd41e5a63edab215eddcbc26e1235ef4c458d820eaa3624f167bb1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}