{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb69fc36df3200a91aefc494765ca5c417ca32ebe7db29c4763d8d0c5a99ac174",
    "signature": "0x2b57edb2227cb093015c03ef2210ed8a51f06f4ee3d99b57f4be80c5b56906a276059859fd44b923094cccb9fa333b8c6c97edfcf596c930f733c15ab73bc5c91b",
    "signer": "0xFBf95c6bc807F6f3A75aaD2CcEAE23E5EC61169D",
    "userId": "432888998"
  }
}