{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "132794731",
    "entityType": "User",
    "nonce": "0xda20d7825a1cb781824994ab9ea64486050a7916dbc478d68339a2b8e815be62",
    "signature": "0x8ed937cced2b3af1520c3e52208f33dbc422feea26cce23f51840a81216944824f4fafda30769d2cc74e5f6ae96c8ba8380ab8af06a5145cc5d320a17851c1bb1c",
    "signer": "0x369dD45047998ccCC8699316C910B0D73eDf8A6D",
    "userId": "520723855"
  }
}