{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307252",
    "entityType": "User",
    "nonce": "0x5c66edd355cca2ba0bd7339173949db0ff762bb340bc0a74ae9909ef5a1f7613",
    "signature": "0xe8779dd0890a8e0fcf702a9d34c31b48c7939975f00adeb747df04cff29677da0246ff8093a0b6c9d8173a2c1e20769770b5489b1c78e3326182c947e56379ce1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}