{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6de1a9691c8e30190585507f71c21b06212e5ae3d48a7ac1d7b5a2c509bf997",
    "signature": "0xa49a79c64cbc36b7c701961b5ae211a9ddd4e3615299d6736f56f837efc1db93206a794eb478c48f906fbfc30afb87c350d6367c8098af9bc647a42200e4dd591c",
    "signer": "0xa4c6DDDd3541f62a2F4226b809Dc2c4B29683F19",
    "userId": "825299835"
  }
}