{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237144",
    "entityType": "User",
    "nonce": "0x929c2a960175f78aeb7f9fa31aebf57823227bc92262f60b7da846131e17d5bb",
    "signature": "0xead1f5f75f737a4eeb80806830f05d77a188da4639b596342c158435a7765428245dfda108635c4ef23a02e74d5083aea7c2383585e2f79cb3c722ff894a137d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}