{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16752",
    "entityType": "User",
    "nonce": "0x2fe036810c1522923d18892f83a94802d52280a1820722246e017fd9b21420ae",
    "signature": "0xc61a8e94230f9ce100a7be8fd40c68a3e99f9f979db2e229832280b2d3b4c14c673a61ed8abeaebc6fad29dc4d0124878c40d417fd843d079c436f987c4585bb1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}