{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74571",
    "entityType": "User",
    "nonce": "0x6413fb550dd52af7978555eed0570f69ea1049ddfa32a98b635d9f13d28800b7",
    "signature": "0x8387282e2d0afc56cf20ecd69e4e02e37e931649cc2ce22b97d7d506d0317ff94763d4cee055a98c80ff115e457aa2044f7a4799f95a7af5597316331f65fa791c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}