{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881172",
    "entityType": "User",
    "nonce": "0x79784508c5ea76c356adc4cae2955f40846459113652f46ef0fc9fdce0251c62",
    "signature": "0x74e858fdb317dd06b9db1b879b716cb6c696b172cf03c733882caf37b856fb537a546a204332d7a0b9dc6d8f721cfda5c83fea2a313cd1ded7307268b3e851dc1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}