{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78345",
    "entityType": "User",
    "nonce": "0x5cd479bf73b6b0f6feeedab0f11b749e1deae80360f43ba81ffdaa20b6996cf1",
    "signature": "0x4f814e4d1c2a660b81ae2baa529b7b1b217f763bd95a0be71bf8101827ab005b313756a2bf0ceb31eeb7a02f5d1b2d6bbce53dec67ca1657caaff7a2d49387521b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}