{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x9500d659e635158b70d4cbe68e42493468b73c3d7f09ce0d96c5bceeb6ed2473",
    "signature": "0x4cc879c6bc8a4a90e0ae0055c98d39410d92620bb5e9456df00dc911b7083b085a6b1b4802601770565936d6be04d2abe021a10b9843c87fcf0b2f2d054545931b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}