{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7444",
    "entityType": "User",
    "nonce": "0x4ef38f3369384e11106f925f700140f90f2462e50f445d47d51c69f6cabbd714",
    "signature": "0xfc7e0bfcb5c43859219c71f02d8999f631f2b2ac270fd47a8069453a87cd6a2e1ab0615f66499b53c5d5e2795a2b99e6bb48a0795141c23bd261805031267fa51c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}