{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87ab1c50bc0671845f4fd8561a00d788089827e01f9073e4203e27698c8bc7ae",
    "signature": "0x5046bbf16b3a6ffe8a86967acc89d6a65c1c90175acf19edb5461f822dcca68c3913e11d758db1718a0ef61f87523e657cb5672cc8839282172981645df85d311b",
    "signer": "0xd4a8375fBc27B9E2bd5Aed00bbeddd2eDC36BCCc",
    "userId": "884906086"
  }
}