{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc8d47f76edc000cccdfef18339f44ff99042446933877cd747302721ca77b72b",
    "signature": "0x4d2d2179c8a1c1171e1a30a345c604b849ceb24c0e84802e9da68b5af6855b356ae1729ea357ce0b061a7e092323cdf36aa08e8e84787681f05720831f539bda1b",
    "signer": "0xb104eB685b9738A115542B4541Db0cB0671F363e",
    "userId": "739935323"
  }
}