{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20717616",
    "entityType": "User",
    "nonce": "0x41679e85494fd8739df9c075335add31f781699a9aebc46d8290f424e93a256c",
    "signature": "0x81dc8ce1d9ee349d39303e174ea5238ad68aef930feda52e994c5d0c0a936f18178070c905afa2fe0d9286f37518ec787a2b7704b44282c26b3abb3bc1069ae01c",
    "signer": "0xDD3Cb841c7f19ec5581F8E2b14d6f7a58B92d0F7",
    "userId": "582464754"
  }
}