{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148293",
    "entityType": "User",
    "nonce": "0xaf297f28e5af602e921fae345e95c42c89a5ec304f6f6a3ce7eb29a7b941787b",
    "signature": "0xe1ae7b4f9ca983c15c26ee1b0744753652b2040f5ccd1bb85922be631bdeb7567932dcb3476daf122cb4e1d36a132c1990a21d3fe39329bccde9a45afb6a645b1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}