{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "69402",
    "entityType": "User",
    "nonce": "0x88069577ee05d089a1902f24d2f92e09738c508ac0ebe6b27185649bc1b0e587",
    "signature": "0x67fe21d01400f897b95cfee84d0bb824c2796eafe7907a3d71a610c2b5de8f2a44a96e5f72f2b462f78905921dda3c75e23a518ae1e912b634ce179c4c95ff131c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}