{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273007816",
    "entityType": "User",
    "nonce": "0x1dd1e7483c5fd1b2b31c2ec579e6eb6aae252c46caa6c9cbdbb9bece7aeb4b3b",
    "signature": "0x5eaf9dcf5a9daa83fd7683bb1adcddf6613d0a6320352a0087f542e3ac4e29483f33435b0dfee312056909cbe53917057fa917d9c95544f47b0be8799b151b851c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}