{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xefee1bd67afc30eccd6aaa299e9507e2f1c511cfcacb26f51c284eea4f6f67fb",
    "signature": "0x147a2a1ea25ea772d5e906f8de59c2afcd66e96db190b0440100406bdadcee082b839288df0599b17a2a736333ba96d6b12d541f3654eb04010a0b8eb82c8a871b",
    "signer": "0xD99cbBb45184D7E1377c061356C5f4D1240742b0",
    "userId": "411582327"
  }
}