{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99021",
    "entityType": "User",
    "nonce": "0x6c207326f011f2ac19304e3dc8a51a2cfd20d25bb3d5bfb6baeafb3ea2ccd3cb",
    "signature": "0xa92bf4e166495a984cdd9da740c9f9e2a853d77568db52281f28d0eee0757a3745d29cba933e80c198059ff56e084024f155cd77422689066401a2e78b375e711b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}