{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3137",
    "entityType": "User",
    "nonce": "0xbee8223d84ed0b6b3d605521eae852046294151899caab3ca806f804d073c0e6",
    "signature": "0x8ce70ff97ca79f75d8be18a7cebac53ab297b3d90448eb701d95545e831a1358323e5ee3c0bcf724795c80d1c285d8871a0848eb4eb56f7bfcb3935bb7bd35ea1b",
    "signer": "0xbF40719E4fA156039728D974AB2070915e7Ac676",
    "userId": "144203"
  }
}