{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87e2cb45eddd2b96b766f0dd592d2bbc074ec71f1f69bda3dc9224574ee44d2e",
    "signature": "0xe4e67e17f12d143fe9a3b170162c32e6ecebd7affad13aba7670f3c718dc6e8276d6902887c44b6726a8e2284b40cfc0a602e5dc3d073ffd40ed1efa61412bc51b",
    "signer": "0xfd922fFe7bDCaD44A4Cb39ec62344aeA629Ae0ac",
    "userId": "431555736"
  }
}