{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4c2d10a73e1b0ec0a87462cd11fe6869076543f312f59f73a749ac9d94c384d2",
    "signature": "0x3d8a42cb8526dbde1649d842e6b0036f41ccafad07e40c70c7dc780e86f7730344e7e1d257a81d94f4d577b623512db5eb4f5ca1ea7fe9573e3d8b0190f40a4c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}