{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x18ea728cf9541ce59c012a50e196f0240fd738fa3d3e68ab0ed3f1dd6278c12f",
    "signature": "0x799180e8c364a0cad85de3b0727d72c473a3fb6d9551c060ae984ec206e4660009c71aad64b2bd87bfd508d485d6081579533795f39c2378042aa63bcf6382841c",
    "signer": "0x47e3E240A1A233Ec71A6C67239087CE35B149C09",
    "userId": "875072625"
  }
}