{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "860282712",
    "entityType": "User",
    "nonce": "0x5dab22762c739ef334440469ab50647a1021b061361aa8224946bb003fcaa708",
    "signature": "0x018ad1b4cf3437f70537e8354f24581140e9e52ec7f3ea5948c205fb34fef8ad0778e230a1a470327ecd131f4decc7cdb59880f550156861dacfabd5cdabad961c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}