{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87577",
    "entityType": "User",
    "nonce": "0x9ab69e76bcee2b2ba3170a79eeaf98c3978654f5b9e698dad554b14948cb93cb",
    "signature": "0x78a38f9bfed640e2aadca4f01303be44ede37ed9bdb357e9fe5f737875bdd3cf3a5577fefc8a1b7822c65992a861b051dfa86723e31c48057db0e17918da67401b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}