{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332104",
    "entityType": "User",
    "nonce": "0xbcfdc39cc03e6fd704a6dfb72a0571d83bfee2572eb002132f3f12b80d06eb45",
    "signature": "0x2e0deaaa0b4552c03cf4cc50f39aefad666127dd1b0abaed3d6b94aebc762a2c484d01d45d1804dbb9022f2027d8ab9e69c457a82d0530221857b57686acf4f61c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}