{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "420647095",
    "entityType": "User",
    "nonce": "0x91f7b8830e2fc867f7da40e9c1f1a9e7ae24e438d9c0c3135a15fb8c9c3aad84",
    "signature": "0x1a6fd7471e4e21027009c04bbaa7f257336ad57d3f710a9a79a59898eaf9b76d664784d3524321e5c7d8b2fd7c3bf23936fcdbf4b699e5d26fd70d993d1323af1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}