{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200744",
    "entityType": "User",
    "nonce": "0x2119c1af89aea801738ed630c609c8cff979e767a78c95b73f03252b39c57b2c",
    "signature": "0xc29446d432c5ff3be08f38ece7e0423c513b7e0fdac40e19daad02e11e7e7aec190000895d997bea0f9267ddbc609c4f8786ae3e0e2160cadd7eac4a7a2ea9821c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}