{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348435",
    "entityType": "User",
    "nonce": "0x6d5d98bddd616119887ea021c89326ff82750758ca42cc66112ededfd3aee4c6",
    "signature": "0xcae8865c1b8b4f71f96741b6725e1c6d806decd3075fb8db6f03f6b9023e1179713fbd4b618706193fe5345e2a2384c39e7d03792b2284f5df24f49a940679451b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}