{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395",
    "entityType": "User",
    "nonce": "0x301f72d4a3988987604208847d51f17927d1ad0346d5419ba6207daf484c0f5d",
    "signature": "0x763577bdfe8b2e92aabb8978916cc591c9ba7269b195d89f9e50ee11e677134f5e5d3ef2dc4e8ffa80c70d4d5fa746ad48279df25bfe613ef9a36f92d26259091b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}