{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42617",
    "entityType": "User",
    "nonce": "0xf9ea971c3a286ef51fed977dd9325700df245c682e738b80c73b46211b11cab4",
    "signature": "0x203f1368cbfd468ab9eaecadbe4d010cce72b4fecfb523797da569a49ee18a3b65162199160859fb8a8e6aee54e0a54b5c9a0c972831c7b148d26b1b56fd841a1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}