{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61873",
    "entityType": "User",
    "nonce": "0x797fe1e76413ef3bef271eeef230d822dce7ef75b12e63dc309743b6c59648af",
    "signature": "0xfe056e9d9c24dc99d0255fa08dbced65ec3c550cc5fca55dfa4a582a9cc041643a7dac93930b7d78f48d1ca7c223038f12ab6462e4de5c619e06f29f3c0527701b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}