{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6edfebbf8ecbdd9c165de14c2e3ab84f35149ff6a93a8156309d1baaa11d4126",
    "signature": "0x45b56a8135493df4a35eba9a182f0830c625557006ad30702d5fdfc0e5ab33ba2fbb6ef1ffc0e506108e22b1d9818e404c630d6e5e19f456b5b5c1aa7b062e871c",
    "signer": "0xfB25aF521deF353368C09F096729341aF253cA61",
    "userId": "994613244"
  }
}