{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26026101622dc0f851b9a2ebe2efb0cf87fe3249d3c0abff806e419c05754deb",
    "signature": "0x6d2758ee2673a84f4c13c2de2ecf148c40931c7e7328f2514b29c6f2ee0f812d74769cc051851c451957ec86fe911c3159032a992d5c7bc8532c09726b9e033f1c",
    "signer": "0xbd23Ccab9d3e357ae3438feFebD157C78A5879aA",
    "userId": "240618925"
  }
}