{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584724126",
    "entityType": "User",
    "nonce": "0xf278e45866f3bb9b1392dc94013bdbdc571759df0178e846193c09342df5e131",
    "signature": "0x76f8a59689431a516c4e1024880ffa11c371c02627ff1eec5f50e27d9c9c4b7c62b562c402e73b0fb7294faf119d793ef38d004a81b850890b35b6103d436a7e1b",
    "signer": "0x689Be5c20E6Da52e11A70751E9FaCb05Abbc7805",
    "userId": "676830468"
  }
}