{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88d619e93d970c789f99f80ee6cd09f00ad2b719967667d1d4a1f03dadbe19df",
    "signature": "0x6a4731bca21d65c8726d63ecb279c44806846441bd89a29034c98699413a244c692b6fb8965a875347e8d321bbe7ac89890a61a396d499510c2dd68f52cdf5361c",
    "signer": "0xDEd76C68DF81535Ac67c3D5C95A4918bc43f1F08",
    "userId": "805460018"
  }
}