{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "278974",
    "entityType": "User",
    "nonce": "0x2ea6d50ab552584e59ee63d9a02ea9b2765d4050b2c9572d05e0f4a8a0b20b80",
    "signature": "0xf9e86359cbacac03b11751e7d5219a05a41c970866afb2d627d60e5376c238294e665295e87a5590365634f4a0121af8904d63a16630b4d7f6208c64c07415911c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}