{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71eaf0b158e801c3b93be7d51e8ba1b1b54228f586b36269ff12aebd876b7647",
    "signature": "0xd6fc56931480b9bcef1fc43e313df3382adce9f753bdea3448a46efddd1c9ac131eb3d7acfdff6ca8bf58e36981c13b2d0b2b6149839e233f6cf9b869296e8161b",
    "signer": "0xf60BB43aa80c4c768ad1aD837cE30Be72F4e5630",
    "userId": "476392188"
  }
}