{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1cc3fe41542620865ee6894d33b1953fe4b81f15b17a81983424696adad519bc",
    "signature": "0x27ef2bd3873e0b4c7088cae36cb64c8ff27821a7747b8808cd6b11c8ca806c5e21b139b89a20257212ba52120c6b5a5dee6d4505efeaeb12a223ec2290f476e21b",
    "signer": "0xC6B31Fb8dfcaC5630f010dD4fBaD97fdbE8F05eE",
    "userId": "722423963"
  }
}