{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x36010cac81369edb29a64896a58f90d11b94978c7526d8f0bc301ec765d1c6c4",
    "signature": "0xf7ed72b2481a544d9e1162c9e0f458b7d9fbaeeca24c9947932b998d17c674df30d29369e4d5ca662ed4976c277432b1ce2d8d380ebeaddd3660d2d179aa15431c",
    "signer": "0x2d3ddA061F66Dc4aeF3F3D0164BBE57Ae32650D1",
    "userId": "754566051"
  }
}