{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2684",
    "entityType": "User",
    "nonce": "0x5dd2728299c609304fcca0e1498f46bafe9a1b20a980e7c84983765acf946989",
    "signature": "0xefadafb442d5f413669c6e7613a7a394ab4445aaf22d7423fa24db62592a7c75153b4ac7174d653fe1c027d48a16601e7cd00c5e0d61f222adce85d44c2d05de1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}