{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74352",
    "entityType": "User",
    "nonce": "0x156b17963c380f9c510b6cacc73e57aac0a1edf87d35de315234f254e12e02c6",
    "signature": "0xaad03605f661780026f9ba164cd77f83db6aed28c2e2784f721dd1f67a6bc31607e2581e51468bf6f274a6d103f78fa5a41d198cc6f448ef79a357e39f3af80e1b",
    "signer": "0x13839b1F022D94fAb7C05558747a2F686429366D",
    "userId": "133653253"
  }
}