{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7618",
    "entityType": "User",
    "nonce": "0xbbbcf7b187b6ef32f685bb8db1a4550c216efd0a8360bd62a0aa5e3610cab6fe",
    "signature": "0x7ef53ddc30b3a4862dfa6cf1182ff2839643b4e4fa5f7b7178ca2b5101ff5b7b5f790203d44261140b3b5f549fee793b0b0eb721a7e18285b53a2a1d4c6231511b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}