{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464533",
    "entityType": "User",
    "nonce": "0xe2f8a8daf4be9b6f75433a4f713f9b12e3e4e0bee18a525e1acd614fb0c74071",
    "signature": "0xce4b362120368ff168ec61229ae209c1bbf9aa64e41c4d4e14111699614cb1245c745a2f642b11403a3c21c37e073cd72c848cfb621ca9a7acc13b24b7c6e6251c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}