{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x25d592ee324e19e7741142d6511ec2ce0763f8aa385c453ac46ba13f6d6143cf",
    "signature": "0xa455573e579512fbdc3081a943ec4d71fa608ad1b3cfec5ccca3fcf3c29cd0322d1e4a8d2d083223278d72bb1cce9b544a704c7abc44e4bb27f521119af0f33e1c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}