{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "126",
    "entityType": "User",
    "nonce": "0x17e9456d6817e11618389e50a2fe45b8280352559b6fb66cd4a53f5afb171434",
    "signature": "0xa2f2debd012e519421b49539b7243864b17814a5a5aca279fabdd96bcbacd74a21af3a37aeffff35383697df0c770784e5238514a37e4c059595d5d72e2e20ea1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}