{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27fd197df45c10d9d86e42def93c93c3980ae50dc8ceeebb2e874e023c7cd9e7",
    "signature": "0x19b33e0c223e6fd8ed21a31d51bca08fec6e45a80f64ab3500e6cfd54b72c2924619803e79c9fb1c3087b3eb9760b2cd05a22b5963224f28fa52ecbba6a67d141c",
    "signer": "0xc0f76D7a0b4B28398c597aBbCBC0ce0d51bAc5bd",
    "userId": "302687141"
  }
}