{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146164104",
    "entityType": "User",
    "nonce": "0xc71e4556fdbd58f07a4f12020f88c88c56020f927d1950f190fca6afc243c608",
    "signature": "0xca53f7ad7ddcd9e8f3d05357f5d5dafade09e068c13161f3fbe5302906b45b4b2f2a2f61ff090d26bd60ab2bf9a256e2fe8c97f4d4e3dbc4a3f39a86ac3c62221c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}