{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0xc753a5ec735fecffee553495455f791918ef24c28f60de73fa651bf9e6c540fc",
    "signature": "0x530c21e10e15d4d708cc300c22491dac66b351735b1c22790d44778bf1d0b964067409118cd3449d063d875285af8916ac6e05d36dcb6727e28568dc0423dab81c",
    "signer": "0xE09A95aA63d8B1AE975406d646074B73ffBD4ACC",
    "userId": "27841"
  }
}