{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb89e0bbcdf978c853568ad121bdc9cbce8227ec183bc19cd07ab7cec5faad3ea",
    "signature": "0x1c0912d8be8d565808596cfa7092f9aa0a12234d32dabecaf272361be249f80342f686ef0feaa82a93839f82ed49397365a825408b8237127a3f05d585af10481c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}