{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65e92ae39946f7676852c0b33aec4de07d786565704635c3a498f2add63a8cb1",
    "signature": "0x36c3ac76bfab7db5e8ed443584c26b9bd6cd3831482e8000e9907d23ef57de7b2e384c44e9dd93cc00d62af5bdb3739a8a05dc01aa764b1e8e91d99b97c0788e1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}