{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377463",
    "entityType": "User",
    "nonce": "0xdd83e8fb47a39b0977ffd7329bf8aef719b584ef3b42f8de0750421bb2d6cc4a",
    "signature": "0xa82e8239faaf103d8411053372f39c860a5dddc2788a68177d461f0c040b0fb103264436306bfd401a031fe8c853f5ddaa6db0e4c3f32d6c752efe4b2ef96e631c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}