{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2dcca0f4598656c4b5953cf55d8f3e9d161009d3c417a35fc40505d491ba474d",
    "signature": "0x1faa7316eaaa716ff6f3436093a59a954b10da630fd01f17594623381f01d26a6de353f3e645c8fa30f1aa1fadf97b328483d0797e51364402198aad1777e1e61c",
    "signer": "0xFDE85dE49F586bD46f93bBad653520D878cCdD47",
    "userId": "843706290"
  }
}