{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158131",
    "entityType": "User",
    "nonce": "0x3a28ed5b0d4c7e3f886509c781ca31776f13fb4700035b7d1da752b1db0354cc",
    "signature": "0x603ba0e20ce292c8421cfa101867f8b0c4b4dc57c552f84b8c466006079c78005cabd32a44d7c2d056c80f2a9a4d9e5b72ee4a10c9d1c9c996321ed28af744bb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}