{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66a1b168267f7aa48e02d46bfc7b69ab3e52e71e355768bbf24e0dd792e7d281",
    "signature": "0x0ece66b12105c58a9f37574dc2c2af27725588712cc6d09e360ff040979c95ed4a752f9d19c116b585d54091409e754be4752b5314ac87b5140a97d1f06a09bc1b",
    "signer": "0x5dd44D2a666f80E78cE8f0969F625DbE63939cbF",
    "userId": "988378847"
  }
}