{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108340",
    "entityType": "User",
    "nonce": "0x1174476bb4d79681123364530910ce5cc0c2062aa222d71f150ffdbbd2e43895",
    "signature": "0xf52a60c15b9360c108e53ac26d1a2d02d48c54bd6eff0ebb1dcad45e1b1e0714376da51b5ce9768fbdb3a5787d2602b7b5fc3844324f29d9f8234a2f413d7e471c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}