{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154324",
    "entityType": "User",
    "nonce": "0xb30934c4dfd459e4471f7531df5ebf61c4f9c116dcbfe506148600c59554a1d7",
    "signature": "0xc66c9dda845d5093be229e4003cd89af42bea7a5d9d67a73e7c3bab0cb27e4027774fadbfee10e84d30ed28738aa61a7d9f3faa3613cb7b82d7ea783a70868751c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}