{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x93db0719663d1d46061f750ec2cb774d34187ccc640407d7642c660341be626d",
    "signature": "0x4a9967d8c05ab66964a1c92bfecf3368d7e0c1af95856a7520c8cfda136a7dda69719e92675134e9c86fe3b77a2d5da129482e4aebe635a8a580a9ec03a8ebee1c",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}