{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3f98f4f122f5d9cb967c61912ebe8676c4bfd0756ad0f332fa621619bf4a182b",
    "signature": "0xbb9e789aff2e45a83166521753d0b92b2da529085ea18bc9b5059ffc54d65cb95a4f90044d21a28af624ffa8add34f84bc1db345f6ae86c436260850de8974531c",
    "signer": "0x1eE9054C1Fbd103C220810Af04980227e57d33E3",
    "userId": "52328655"
  }
}