{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957880767",
    "entityType": "User",
    "nonce": "0x27cf401dc7d0b35b8407b25b3eba7550f4cad9b995914f8cf738c97c878320de",
    "signature": "0x713f5075b81b8133bc228b0497fa9b2fead93361f3f6869f50d74d8a7114c7296030f01d62f2530f07a8fd2728c55d32aea227600c34a3e39a6616032282395e1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}