{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72597",
    "entityType": "User",
    "nonce": "0xd972a8af0c8a63f36541e979b246578eb6abf7d082a80de0d3d58f7bdecb0ad6",
    "signature": "0x9a2ebe403b61e4979afbf1d87a14d3b43e5f576069e8f0a29e70a597b8e3c6953fe5628ce6a070996cd09d626824ccde5d39693951fe4edc94f941b7ce2a0b6a1c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}