{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338569",
    "entityType": "User",
    "nonce": "0x7fd27afca3787155c75cd9285ea647beb8024774b3b880fbb7b043202bcf878c",
    "signature": "0x003110957840c920fac93ebb60d7fe2cc695e1698a0c7c006d80dd5afbd34551329a3498c20a921ce7b282bd22f0b348df970a1c0bf44ca6ed5fea5d9be6e43a1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}