{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5d4c2c1e51c840d77b50ab909c84e4f3b694b0b861754f30344dba637f0a6b6",
    "signature": "0x84c9d96edf865133756ff9d72af6441da58817e58f6f397872d0bc315f9483ab68adbc5a64736b740fa5c702437036201154c8f995b3a05d40fef741380e27f81b",
    "signer": "0x603e7BaB44b5BaAd8BC20BeAf02211C3db340CDA",
    "userId": "850164388"
  }
}