{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0c0cad2d4f2f3636b9efcc6e22c4d8154263f3df6fa68c1c2aff470d2d1c3108",
    "signature": "0x43024aa12e21f65d854a95c14cba77f93a99a0bdec316ffd76da8b5cdef8705e402fe44619715fd36d69129c9d2f0e0b53c83aa79f57097742426b06e7a936f11b",
    "signer": "0x2639E8B48C3D90607f37e9E21D2A18a171243DEF",
    "userId": "78146762"
  }
}