{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0x9c48249d1bbd6aeaf77c08093ccbd40e2c01bd521241f03f0ab8ba0d9140cb9f",
    "signature": "0xdf5c8974231a7bdf2e8a09b93c4b692a2e84568522286029c14a8fafc9f719cb348eab51c0451038bdeddba96ece13a0f39127e415dc2733fe7e7bb5dbc9c8a51c",
    "signer": "0xc7713Eb062b586364a25beaaBccc93E21Df318c0",
    "userId": "269788074"
  }
}