{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0xe25693580159d70aa247d620c9b4913e39e82a4a63fee76fc5d481566608c6af",
    "signature": "0x11c10958523a4a578ce84d8c8c6e8ec710d5622ca0cbc17cb6a97cf0ecf77cad1504a1133100b38860a06d5a84c9edc291e069ed47987232434891adf4bce8dd1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}