{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8223",
    "entityType": "User",
    "nonce": "0xa97778efa9458af4b9179b69224f0c4cf754da817c0a773098f022b1e66147ae",
    "signature": "0xce2cc65fb8d539f7ba6935467d524785c6613ab406b946df6dc0d59e566812653d985901a23471635c132770e303e18cba85e285c69148754a84a0cb9249ca191b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}