{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5283",
    "entityType": "User",
    "nonce": "0x973d5923399b9c315ef4384d35f41eb132f09fa40b80d097ca39b69518d5dbfe",
    "signature": "0x3518ab9af11d5667a50167c28d54daa693c2740c40f9e4d8fb8646c0e707db615a2876b971194daa5d3d46cc52f1eba7b91a8d05494ba54f9c42a76f2a0119401b",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}