{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "867090172",
    "entityType": "User",
    "nonce": "0x3c5ae25b30647c27fb728d8c7fbc6054aa1712fa1fadd17823bbdae184dda8e7",
    "signature": "0x980c0c3afc2d307b38d9d665e2b914a13315e34408368bcfb86b760efd50c446369b7836297bdc4c3201c94d4109740e2d2234cc24b8ad2c20ae5bd3b334df7e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}