{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3fba0568e19e5cadfaceb0d10294f50ccbfc9839d32f863a3ae1cb1cad6c66a",
    "signature": "0x1e4090d0825f53a8b59d7c6f72451a17304ce70cda219596920cdb5c57f5d32223f77925722d7ff2dbf6aae4c1a9e6821d381982199043e0ebde2662626f94941b",
    "signer": "0x90d9868655F9dBcd7a252f0F204AE27Ecc8aad9B",
    "userId": "921301450"
  }
}