{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57937",
    "entityType": "User",
    "nonce": "0xf69a4609cb68f2d59db451b0353f3c620bb2b9eb08e771016ea5872580b9f5c1",
    "signature": "0xc8c24381777024273e22ce0b7a93e1b898a44aad1184e25603d66961e1b01fbe0b76ff71cd9b6a8a0b4a4d964f8989c064e995b10fe59f049fcc79a9bc22b0231b",
    "signer": "0x5f512800E8460c0e3A244c95Ff54E4310f2c488b",
    "userId": "82636883"
  }
}