{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18281",
    "entityType": "User",
    "nonce": "0xa30b865e024af81cebcb2c8704d7402bf55d0ec26983bfca2820f65349cfd19b",
    "signature": "0x303d290294d43a45420660ad32f003c913e813cd404b95f513ca3d28707007a41a14dd09d20cf03ec483b1a19920a38f2a6fe529501a464dcbd6dab32d1d13061b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}