{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882104",
    "entityType": "User",
    "nonce": "0x50e90ba6755043afd71df0eaa94cec97c814362f1b9fedd094b5e4c7017ec6c1",
    "signature": "0x824c75362e2c8fab90158cb3387675a850022b30f7e885866fe5d1e475be82fe52ad71605b734f23f60b7c2ecd1b9b7447170f2d65d417f28bf4a661fd8ab9de1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}