{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967",
    "entityType": "User",
    "nonce": "0x4941515f201520f0932631654ad62a6e4f93849b0edc8672f766f241786e0aae",
    "signature": "0xb0cc484897a4364f77d496bf36e3854ff3e19c31ee0c41ed6b70f8fe2e2f07257cb7e401763e06964b0f247c52d4ddf175ded0fa25add33a5bbd3024b5252f8c1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}