{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x47cfe478d9f1ffd28d0c61f771982f12282e5d1944ade792863e588a298b390e",
    "signature": "0xff5623b00a5c3f8d7d85b6a0093b3b48e57cbe480b572eee8306dda9a763a14a4406a78869b2a6fe1a89bcabc09f4863f85d028265121ca4c905be9d418da01f1c",
    "signer": "0x5e16eE72f4c7af2A50C7DA188d65e074e69D78B9",
    "userId": "898051107"
  }
}