{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d31ed879f99486783d198a9d4e5a16b2196a5f79b11437110dd7e17bd950769",
    "signature": "0x7929832a303814dd9e2c659f235449db1d982ecdf8a17c06d4d86e3f53ebcb7d44d70b6c527d427cccd08bb1d44658a78aeb7c76d46f793fce5131c2f5b8baf11b",
    "signer": "0x869e31Ef92648a72B2a261859B9cc371910697d6",
    "userId": "779349548"
  }
}