{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614192814",
    "entityType": "User",
    "nonce": "0xa6cf3fb98a944cb0b0bc0c2d6472a783c5726a2b526d2222b722f51676ee28fc",
    "signature": "0x398ad48c46d2a4aba4d293fda2b86c53297d54013b6db69019bdfd033603fcfa1b2706908be4a1d257c7d6f8a93ad373a50cfde0e7a75928763f568c39449bf61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}