{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128415",
    "entityType": "User",
    "nonce": "0x76da7cc90e26b003bd828a101cd63ba1024ad6c2c659eb64f410ba3c804c0d77",
    "signature": "0x31392b2b93a2a7138134a5025ff9f7105a873ce2699589f5d55f35de880876d43da2a48dc4fed6194a9cc0f9c2e14887117dd46f427f085635867e39674a91ff1c",
    "signer": "0xF7DBe9b843E977E69B3b4D2f71522339fe129359",
    "userId": "624790304"
  }
}