{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "619950545",
    "entityType": "User",
    "nonce": "0x1725600a73c487188326ff67de79981a9d1b09e996a6d90fcb177a8aa99b0323",
    "signature": "0x6c9f87037a27a6a2186cac43dc217e6a1331e3c5ad338677572dbcf899a08038650d9fe00117f68bcd18661e1929c8afb98576874e9e205c0b6ade673c56696f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}