{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8efbb7946573e659abc7e3cd53b02acbf27a7d9a3df6573e7872e2a3b44f461",
    "signature": "0x19c52deb5dc329e474861e680353604fa55ab38f0c54e03739338e0b38b0a84d6332b816c8dc00c739e5e5677cb754dd90a137c1becfbfdbbab4a5613bb6b5d81b",
    "signer": "0xd66e743f0CF90f603D5F8501Aae3034AFAba4093",
    "userId": "147515794"
  }
}