{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "986621",
    "entityType": "User",
    "nonce": "0x109367f08d024454a3b935d606959fb6fc5b6509ebfe151388176a775f34ebac",
    "signature": "0x44cda573b064177a5071f56f9d1043633cdd6684281a36dad1a756ca0eccac410d771d6e20b81998cff17edc1d63a87733bf82d293d0872cfe7e745975d47fb91b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}