{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120678",
    "entityType": "User",
    "nonce": "0xac80f4a37702223458369658d79c38e790641c54f583d090d18ad103119d965a",
    "signature": "0x66b3b330811d4d04474f9171ecbec23d0ae8c6d69b3c63e0c96c626304252184577615d53d390e3b02c46c7f4c3717c21bbf3e81c1580e9e02295313e6fdbe381c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}