{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x8ad7bb3151e45108c18c05f4e1917c5cea70a06813f4eff5c2db3792ccdb4661",
    "signature": "0x771fbced3e3f1a481470a5d95c87f923afc4c8fab84db4e1ba47cfe9891da92b0e2c81b9c65bf025839715f18b270b09a537a86376961a6ae86bfe6cb412e6e21c",
    "signer": "0x5bc0009c945577B994122eEEdD891ADE9f7e2DB2",
    "userId": "77605"
  }
}