{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "408059868",
    "entityType": "User",
    "nonce": "0x8379d2caf20999320a452bd2d0c9c3d513e38750b14c9d993c84201c22d7b2e7",
    "signature": "0xa892c243a2440cd2e7b511b2cda53d72f2e6de25f1ea3e03ea76b4eef5c1df0f6f6ed7084cf61e63123d951130f224fac6bef743ed580c918a4d388f701a5c741b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}