{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948584098",
    "entityType": "User",
    "nonce": "0x4b69da4a359749895cc4b8a71b4c9ecdafc3d99a874608b462a7cb9de88df797",
    "signature": "0xad210ba3fb9e4d52ffc31b23999d689893c6fecd18af55b8cda323d38ad7dea578d51784ff085101e383aeb4189a5ca7d5d46b697a582e1f2497ab467151cb071b",
    "signer": "0xBdEDA9FCB76346C79650651637D11Fa62F197564",
    "userId": "138691010"
  }
}