{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ab129dec9ccdac089b2100e11429844db2a10801854b458ae7a80e084d16019",
    "signature": "0x4ba88ac538b489ab4acbf1e7bf28a23ba10329898d7ab90b6107e6c94970e3a509c0d8cf4df60afda6c95eb6d07785c9a428828c9f3a468286d0863b35c3a8241c",
    "signer": "0x3ac0c9A28E35fb81b4B102Db74667c9768eF29eD",
    "userId": "25424768"
  }
}