{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x45b6b6b74466e0fda000f82f337bd62d2b103ba9d69aa325b99b5a0cee0b7bf9",
    "signature": "0xfff52a09ead5d8b1855242c70fbf931485df543456f7af9f9baea890877cda8b6408b5ef0df6d321518d2c42ccf086d9eea5a7a1b13eea98da591571cf20fa051b",
    "signer": "0x52a6783D5814fb237522A58FCa7834aC363703a0",
    "userId": "852331676"
  }
}