{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65773",
    "entityType": "User",
    "nonce": "0x7bf63fb4d4dc0b81a5536e9deed15dfb0c11dc7d524e65de92186b993f75dd9e",
    "signature": "0x2b8e20dcf35a4880b1c5209bab01ddc44cf4b5c9358aebdd2a319c2f4aedcc5d63403568bc047605c59345ed296650ff72835a2daca68151d3aba56862fdcb401b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}